Remove some abstractions in fxjs_v8.h.

It's too hard to keep mapping between v8 and fx abstractions; the lack
of transparency prevents those skilled in v8 only from working on this
code.

Apparently, the original intention was to confine v8 types to
fpdfsdk/{include,src}/jsapi, but fpdfsdk/{include,src}/javascript
is already well-polluted with v8 types.

Also remove no-op JS_SetThisObj().

Also remove unused ParserParams() [noticed because it was incorrectly
passing handles as pointers].

Also remove cast operator from CJS_Runtime and call GetIsolate()
explicitly.

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1332973002 .

11 files changed, 329 insertions, 357 deletions

diff --git a/fpdfsdk/src/javascript/Consts.cpp b/fpdfsdk/src/javascript/Consts.cpp
index 4529f013fe..77cf445d77 100644
--- a/fpdfsdk/src/javascript/Consts.cpp
+++ b/fpdfsdk/src/javascript/Consts.cpp
@@ -130,28 +130,28 @@ IMPLEMENT_JS_CLASS_CONST(CJS_Zoomtype, zoomtype)
 /* ------------------------------ CJS_GlobalConsts
  * ------------------------------ */
 
-int CJS_GlobalConsts::Init(IJS_Runtime* pRuntime) {
-  DEFINE_GLOBAL_CONST(pRuntime, IDS_GREATER_THAN, Invalid value
+int CJS_GlobalConsts::Init(v8::Isolate* pIsolate) {
+  DEFINE_GLOBAL_CONST(pIsolate, IDS_GREATER_THAN, Invalid value
                       : must be greater than or equal to % s.);
   DEFINE_GLOBAL_CONST(
-      pRuntime, IDS_GT_AND_LT, Invalid value
+      pIsolate, IDS_GT_AND_LT, Invalid value
       : must be greater than or equal to % s and less than or equal to % s.);
-  DEFINE_GLOBAL_CONST(pRuntime, IDS_LESS_THAN, Invalid value
+  DEFINE_GLOBAL_CONST(pIsolate, IDS_LESS_THAN, Invalid value
                       : must be less than or equal to % s.);
-  DEFINE_GLOBAL_CONST(pRuntime, IDS_INVALID_MONTH, **Invalid**);
-  DEFINE_GLOBAL_CONST(pRuntime, IDS_INVALID_DATE, Invalid date / time
+  DEFINE_GLOBAL_CONST(pIsolate, IDS_INVALID_MONTH, **Invalid**);
+  DEFINE_GLOBAL_CONST(pIsolate, IDS_INVALID_DATE, Invalid date / time
                       : please ensure that the date / time exists.Field);
-  DEFINE_GLOBAL_CONST(pRuntime, IDS_INVALID_VALUE,
+  DEFINE_GLOBAL_CONST(pIsolate, IDS_INVALID_VALUE,
                       The value entered does not match the format of the field);
-  DEFINE_GLOBAL_CONST(pRuntime, IDS_AM, am);
-  DEFINE_GLOBAL_CONST(pRuntime, IDS_PM, pm);
+  DEFINE_GLOBAL_CONST(pIsolate, IDS_AM, am);
+  DEFINE_GLOBAL_CONST(pIsolate, IDS_PM, pm);
   DEFINE_GLOBAL_CONST(
-      pRuntime, IDS_MONTH_INFO,
+      pIsolate, IDS_MONTH_INFO,
       January[1] February[2] March[3] April[4] May[5] June[6] July[7] August
           [8] September[9] October[10] November[11] December[12] Sept[9] Jan
               [1] Feb[2] Mar[3] Apr[4] Jun[6] Jul[7] Aug[8] Sep[9] Oct[10] Nov
                   [11] Dec[12]);
-  DEFINE_GLOBAL_CONST(pRuntime, IDS_STARTUP_CONSOLE_MSG, ** ^ _ ^ **);
+  DEFINE_GLOBAL_CONST(pIsolate, IDS_STARTUP_CONSOLE_MSG, ** ^ _ ^ **);
 
   return 0;
 }
@@ -159,11 +159,11 @@ int CJS_GlobalConsts::Init(IJS_Runtime* pRuntime) {
 /* ------------------------------ CJS_GlobalArrays
  * ------------------------------ */
 
-int CJS_GlobalArrays::Init(IJS_Runtime* pRuntime) {
+int CJS_GlobalArrays::Init(v8::Isolate* pIsolate) {
   {
     const FX_WCHAR* ArrayName = L"RE_NUMBER_ENTRY_DOT_SEP";
     const FX_WCHAR* ArrayContent[] = {L"[+-]?\\d*\\.?\\d*"};
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
@@ -173,14 +173,14 @@ int CJS_GlobalArrays::Init(IJS_Runtime* pRuntime) {
         L"[+-]?\\.\\d+",        /* -.1 */
         L"[+-]?\\d+\\."         /* -1. */
     };
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
     const FX_WCHAR* ArrayName = L"RE_NUMBER_ENTRY_COMMA_SEP";
     const FX_WCHAR* ArrayContent[] = {L"[+-]?\\d*,?\\d*"};
 
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
@@ -190,31 +190,31 @@ int CJS_GlobalArrays::Init(IJS_Runtime* pRuntime) {
         L"[+-]?[.,]\\d+",        /* -,1 */
         L"[+-]?\\d+[.,]"         /* -1, */
     };
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
     const FX_WCHAR* ArrayName = L"RE_ZIP_ENTRY";
     const FX_WCHAR* ArrayContent[] = {L"\\d{0,5}"};
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
     const FX_WCHAR* ArrayName = L"RE_ZIP_COMMIT";
     const FX_WCHAR* ArrayContent[] = {L"\\d{5}"};
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
     const FX_WCHAR* ArrayName = L"RE_ZIP4_ENTRY";
     const FX_WCHAR* ArrayContent[] = {L"\\d{0,5}(\\.|[- ])?\\d{0,4}"};
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
     const FX_WCHAR* ArrayName = L"RE_ZIP4_COMMIT";
     const FX_WCHAR* ArrayContent[] = {L"\\d{5}(\\.|[- ])?\\d{4}"};
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
@@ -232,7 +232,7 @@ int CJS_GlobalArrays::Init(IJS_Runtime* pRuntime) {
                                                                  */
         L"011(\\.|[- \\d])*" /* international */
     };
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
@@ -243,21 +243,21 @@ int CJS_GlobalArrays::Init(IJS_Runtime* pRuntime) {
         L"\\(\\d{3}\\)(\\.|[- ])?\\d{3}(\\.|[- ])?\\d{4}", /* (408) 555-1234 */
         L"011(\\.|[- \\d])*"                               /* international */
     };
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
     const FX_WCHAR* ArrayName = L"RE_SSN_ENTRY";
     const FX_WCHAR* ArrayContent[] = {
         L"\\d{0,3}(\\.|[- ])?\\d{0,2}(\\.|[- ])?\\d{0,4}"};
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   {
     const FX_WCHAR* ArrayName = L"RE_SSN_COMMIT";
     const FX_WCHAR* ArrayContent[] = {
         L"\\d{3}(\\.|[- ])?\\d{2}(\\.|[- ])?\\d{4}"};
-    DEFINE_GLOBAL_ARRAY(pRuntime);
+    DEFINE_GLOBAL_ARRAY(pIsolate);
   }
 
   return 0;
diff --git a/fpdfsdk/src/javascript/Document.cpp b/fpdfsdk/src/javascript/Document.cpp
index 91805b825e..a8a4ebc491 100644
--- a/fpdfsdk/src/javascript/Document.cpp
+++ b/fpdfsdk/src/javascript/Document.cpp
@@ -260,11 +260,6 @@ FX_BOOL Document::pageNum(IFXJS_Context* cc,
   return TRUE;
 }
 
-FX_BOOL Document::ParserParams(JSObject* pObj, CJS_AnnotObj& annotobj) {
-  // Not supported.
-  return TRUE;
-}
-
 FX_BOOL Document::addAnnot(IFXJS_Context* cc,
                            const CJS_Parameters& params,
                            CJS_Value& vRet,
@@ -330,8 +325,9 @@ FX_BOOL Document::getField(IFXJS_Context* cc,
   }
 
   CJS_Runtime* pRuntime = pContext->GetJSRuntime();
-  JSFXObject pFieldObj = JS_NewFxDynamicObj(
-      *pRuntime, pContext, JS_GetObjDefnID(*pRuntime, L"Field"));
+  v8::Local<v8::Object> pFieldObj =
+      JS_NewFxDynamicObj(pRuntime->GetIsolate(), pContext,
+                         JS_GetObjDefnID(pRuntime->GetIsolate(), L"Field"));
 
   v8::Isolate* isolate = GetIsolate(cc);
   CJS_Field* pJSField = (CJS_Field*)JS_GetPrivate(isolate, pFieldObj);
@@ -462,10 +458,10 @@ FX_BOOL Document::print(IFXJS_Context* cc,
   int nlength = params.size();
   if (nlength == 9) {
     if (params[8].GetType() == VT_fxobject) {
-      JSFXObject pObj = params[8].ToV8Object();
+      v8::Local<v8::Object> pObj = params[8].ToV8Object();
       {
         if (JS_GetObjDefnID(pObj) ==
-            JS_GetObjDefnID(*pRuntime, L"PrintParamsObj")) {
+            JS_GetObjDefnID(pRuntime->GetIsolate(), L"PrintParamsObj")) {
           if (CJS_Object* pJSObj = params[8].ToCJSObject()) {
             if (PrintParamsObj* pprintparamsObj =
                     (PrintParamsObj*)pJSObj->GetEmbedObject()) {
@@ -664,7 +660,7 @@ FX_BOOL Document::submitForm(IFXJS_Context* cc,
     if (nSize > 3)
       aFields.Attach(params[3].ToV8Array());
   } else if (v.GetType() == VT_object) {
-    JSObject pObj = params[0].ToV8Object();
+    v8::Local<v8::Object> pObj = params[0].ToV8Object();
     v8::Local<v8::Value> pValue = JS_GetObjectElement(isolate, pObj, L"cURL");
     if (!pValue.IsEmpty())
       strURL =
@@ -771,7 +767,7 @@ FX_BOOL Document::mailDoc(IFXJS_Context* cc,
   v8::Isolate* isolate = GetIsolate(cc);
 
   if (params.size() >= 1 && params[0].GetType() == VT_object) {
-    JSObject pObj = params[0].ToV8Object();
+    v8::Local<v8::Object> pObj = params[0].ToV8Object();
 
     v8::Local<v8::Value> pValue = JS_GetObjectElement(isolate, pObj, L"bUI");
     bUI = CJS_Value(isolate, pValue, GET_VALUE_TYPE(pValue)).ToInt();
@@ -854,7 +850,8 @@ FX_BOOL Document::info(IFXJS_Context* cc,
   if (vp.IsGetting()) {
     CJS_Context* pContext = (CJS_Context*)cc;
     CJS_Runtime* pRuntime = pContext->GetJSRuntime();
-    JSFXObject pObj = JS_NewFxDynamicObj(*pRuntime, pContext, -1);
+    v8::Local<v8::Object> pObj =
+        JS_NewFxDynamicObj(pRuntime->GetIsolate(), pContext, -1);
     JS_PutObjectString(isolate, pObj, L"Author", cwAuthor.c_str());
     JS_PutObjectString(isolate, pObj, L"Title", cwTitle.c_str());
     JS_PutObjectString(isolate, pObj, L"Subject", cwSubject.c_str());
@@ -1373,10 +1370,11 @@ FX_BOOL Document::addIcon(IFXJS_Context* cc,
     sError = JSGetStringFromID(pContext, IDS_STRING_JSTYPEERROR);
     return FALSE;
   }
-  JSFXObject pJSIcon = params[1].ToV8Object();
+  v8::Local<v8::Object> pJSIcon = params[1].ToV8Object();
 
   CJS_Runtime* pRuntime = pContext->GetJSRuntime();
-  if (JS_GetObjDefnID(pJSIcon) != JS_GetObjDefnID(*pRuntime, L"Icon")) {
+  if (JS_GetObjDefnID(pJSIcon) !=
+      JS_GetObjDefnID(pRuntime->GetIsolate(), L"Icon")) {
     sError = JSGetStringFromID(pContext, IDS_STRING_JSTYPEERROR);
     return FALSE;
   }
@@ -1423,8 +1421,9 @@ FX_BOOL Document::icons(IFXJS_Context* cc,
   for (int i = 0; i < iIconTreeLength; i++) {
     pIconElement = (*m_pIconTree)[i];
 
-    JSFXObject pObj = JS_NewFxDynamicObj(*pRuntime, pContext,
-                                         JS_GetObjDefnID(*pRuntime, L"Icon"));
+    v8::Local<v8::Object> pObj =
+        JS_NewFxDynamicObj(pRuntime->GetIsolate(), pContext,
+                           JS_GetObjDefnID(pRuntime->GetIsolate(), L"Icon"));
     if (pObj.IsEmpty())
       return FALSE;
 
@@ -1466,8 +1465,9 @@ FX_BOOL Document::getIcon(IFXJS_Context* cc,
     if ((*m_pIconTree)[i]->IconName == swIconName) {
       Icon* pRetIcon = (*m_pIconTree)[i]->IconStream;
 
-      JSFXObject pObj = JS_NewFxDynamicObj(*pRuntime, pContext,
-                                           JS_GetObjDefnID(*pRuntime, L"Icon"));
+      v8::Local<v8::Object> pObj =
+          JS_NewFxDynamicObj(pRuntime->GetIsolate(), pContext,
+                             JS_GetObjDefnID(pRuntime->GetIsolate(), L"Icon"));
       if (pObj.IsEmpty())
         return FALSE;
 
@@ -1662,8 +1662,9 @@ FX_BOOL Document::getPrintParams(IFXJS_Context* cc,
                                  CFX_WideString& sError) {
   CJS_Context* pContext = (CJS_Context*)cc;
   CJS_Runtime* pRuntime = pContext->GetJSRuntime();
-  JSFXObject pRetObj = JS_NewFxDynamicObj(
-      *pRuntime, pContext, JS_GetObjDefnID(*pRuntime, L"PrintParamsObj"));
+  v8::Local<v8::Object> pRetObj = JS_NewFxDynamicObj(
+      pRuntime->GetIsolate(), pContext,
+      JS_GetObjDefnID(pRuntime->GetIsolate(), L"PrintParamsObj"));
 
   // Not implemented yet.
 
diff --git a/fpdfsdk/src/javascript/Field.cpp b/fpdfsdk/src/javascript/Field.cpp
index c44636872b..a0570cb56c 100644
--- a/fpdfsdk/src/javascript/Field.cpp
+++ b/fpdfsdk/src/javascript/Field.cpp
@@ -3315,8 +3315,9 @@ FX_BOOL Field::buttonGetIcon(IFXJS_Context* cc,
   CJS_Runtime* pRuntime = pContext->GetJSRuntime();
   ASSERT(pRuntime != NULL);
 
-  JSFXObject pObj = JS_NewFxDynamicObj(*pRuntime, pContext,
-                                       JS_GetObjDefnID(*pRuntime, L"Icon"));
+  v8::Local<v8::Object> pObj =
+      JS_NewFxDynamicObj(pRuntime->GetIsolate(), pContext,
+                         JS_GetObjDefnID(pRuntime->GetIsolate(), L"Icon"));
   ASSERT(pObj.IsEmpty() == FALSE);
 
   CJS_Icon* pJS_Icon = (CJS_Icon*)JS_GetPrivate(pObj);
@@ -3530,8 +3531,9 @@ FX_BOOL Field::getArray(IFXJS_Context* cc,
   for (int j = 0, jsz = swSort.GetSize(); j < jsz; j++) {
     CFX_WideString* pStr = swSort.GetAt(j);
 
-    JSFXObject pObj = JS_NewFxDynamicObj(*pRuntime, pContext,
-                                         JS_GetObjDefnID(*pRuntime, L"Field"));
+    v8::Local<v8::Object> pObj =
+        JS_NewFxDynamicObj(pRuntime->GetIsolate(), pContext,
+                           JS_GetObjDefnID(pRuntime->GetIsolate(), L"Field"));
     ASSERT(pObj.IsEmpty() == FALSE);
 
     CJS_Field* pJSField = (CJS_Field*)JS_GetPrivate(pObj);
diff --git a/fpdfsdk/src/javascript/JS_Context.cpp b/fpdfsdk/src/javascript/JS_Context.cpp
index 1e42b50138..2bee913ed7 100644
--- a/fpdfsdk/src/javascript/JS_Context.cpp
+++ b/fpdfsdk/src/javascript/JS_Context.cpp
@@ -55,8 +55,8 @@ FX_BOOL CJS_Context::RunScript(const CFX_WideString& script,
   FXJSErr error = {NULL, NULL, 0};
   int nRet = 0;
   if (script.GetLength() > 0) {
-    nRet = JS_Execute(*m_pRuntime, this, script.c_str(), script.GetLength(),
-                      &error);
+    nRet = JS_Execute(m_pRuntime->GetIsolate(), this, script.c_str(),
+                      script.GetLength(), &error);
   }
 
   if (nRet < 0) {
diff --git a/fpdfsdk/src/javascript/JS_EventHandler.cpp b/fpdfsdk/src/javascript/JS_EventHandler.cpp
index 1eee92ddc1..acaacf2943 100644
--- a/fpdfsdk/src/javascript/JS_EventHandler.cpp
+++ b/fpdfsdk/src/javascript/JS_EventHandler.cpp
@@ -615,11 +615,13 @@ Field* CJS_EventHandler::Source() {
 
   CJS_Runtime* pRuntime = m_pJSContext->GetJSRuntime();
 
-  JSFXObject pDocObj = JS_NewFxDynamicObj(
-      *pRuntime, m_pJSContext, JS_GetObjDefnID(*pRuntime, L"Document"));
+  v8::Local<v8::Object> pDocObj =
+      JS_NewFxDynamicObj(pRuntime->GetIsolate(), m_pJSContext,
+                         JS_GetObjDefnID(pRuntime->GetIsolate(), L"Document"));
   ASSERT(pDocObj.IsEmpty() == FALSE);
-  JSFXObject pFieldObj = JS_NewFxDynamicObj(
-      *pRuntime, m_pJSContext, JS_GetObjDefnID(*pRuntime, L"Field"));
+  v8::Local<v8::Object> pFieldObj =
+      JS_NewFxDynamicObj(pRuntime->GetIsolate(), m_pJSContext,
+                         JS_GetObjDefnID(pRuntime->GetIsolate(), L"Field"));
   ASSERT(pFieldObj.IsEmpty() == FALSE);
 
   CJS_Document* pJSDocument = (CJS_Document*)JS_GetPrivate(pDocObj);
@@ -650,11 +652,13 @@ Field* CJS_EventHandler::Target_Field() {
 
   CJS_Runtime* pRuntime = m_pJSContext->GetJSRuntime();
 
-  JSFXObject pDocObj = JS_NewFxDynamicObj(
-      *pRuntime, m_pJSContext, JS_GetObjDefnID(*pRuntime, L"Document"));
+  v8::Local<v8::Object> pDocObj =
+      JS_NewFxDynamicObj(pRuntime->GetIsolate(), m_pJSContext,
+                         JS_GetObjDefnID(pRuntime->GetIsolate(), L"Document"));
   ASSERT(pDocObj.IsEmpty() == FALSE);
-  JSFXObject pFieldObj = JS_NewFxDynamicObj(
-      *pRuntime, m_pJSContext, JS_GetObjDefnID(*pRuntime, L"Field"));
+  v8::Local<v8::Object> pFieldObj =
+      JS_NewFxDynamicObj(pRuntime->GetIsolate(), m_pJSContext,
+                         JS_GetObjDefnID(pRuntime->GetIsolate(), L"Field"));
   ASSERT(pFieldObj.IsEmpty() == FALSE);
 
   CJS_Document* pJSDocument = (CJS_Document*)JS_GetPrivate(pDocObj);
diff --git a/fpdfsdk/src/javascript/JS_Object.cpp b/fpdfsdk/src/javascript/JS_Object.cpp
index 02978982d8..17e987d96a 100644
--- a/fpdfsdk/src/javascript/JS_Object.cpp
+++ b/fpdfsdk/src/javascript/JS_Object.cpp
@@ -83,7 +83,7 @@ void DisposeObject(const v8::WeakCallbackInfo<CJS_Object>& data) {
   data.SetSecondPassCallback(FreeObject);
 }
 
-CJS_Object::CJS_Object(JSFXObject pObject) : m_pEmbedObj(NULL) {
+CJS_Object::CJS_Object(v8::Local<v8::Object> pObject) : m_pEmbedObj(NULL) {
   v8::Local<v8::Context> context = pObject->CreationContext();
   m_pIsolate = context->GetIsolate();
   m_pObject.Reset(m_pIsolate, pObject);
diff --git a/fpdfsdk/src/javascript/JS_Runtime.cpp b/fpdfsdk/src/javascript/JS_Runtime.cpp
index 4ef34a8d20..e3b3ed0f49 100644
--- a/fpdfsdk/src/javascript/JS_Runtime.cpp
+++ b/fpdfsdk/src/javascript/JS_Runtime.cpp
@@ -116,7 +116,7 @@ CJS_Runtime::CJS_Runtime(CPDFDoc_Environment* pApp)
   InitJSObjects();
 
   CJS_Context* pContext = (CJS_Context*)NewContext();
-  JS_InitialRuntime(*this, this, pContext, m_context);
+  JS_InitialRuntime(GetIsolate(), this, pContext, m_context);
   ReleaseContext(pContext);
 }
 
@@ -125,9 +125,7 @@ CJS_Runtime::~CJS_Runtime() {
     delete m_ContextArray.GetAt(i);
 
   m_ContextArray.RemoveAll();
-
-  JS_ReleaseRuntime(*this, m_context);
-
+  JS_ReleaseRuntime(GetIsolate(), m_context);
   RemoveEventsInLoop(m_pFieldEventPath);
 
   m_pApp = NULL;
@@ -145,59 +143,59 @@ FX_BOOL CJS_Runtime::InitJSObjects() {
   v8::Local<v8::Context> context = v8::Context::New(GetIsolate());
   v8::Context::Scope context_scope(context);
   // 0 - 8
-  if (CJS_Border::Init(*this, JS_STATIC) < 0)
+  if (CJS_Border::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Display::Init(*this, JS_STATIC) < 0)
+  if (CJS_Display::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Font::Init(*this, JS_STATIC) < 0)
+  if (CJS_Font::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Highlight::Init(*this, JS_STATIC) < 0)
+  if (CJS_Highlight::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Position::Init(*this, JS_STATIC) < 0)
+  if (CJS_Position::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_ScaleHow::Init(*this, JS_STATIC) < 0)
+  if (CJS_ScaleHow::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_ScaleWhen::Init(*this, JS_STATIC) < 0)
+  if (CJS_ScaleWhen::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Style::Init(*this, JS_STATIC) < 0)
+  if (CJS_Style::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Zoomtype::Init(*this, JS_STATIC) < 0)
+  if (CJS_Zoomtype::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
 
   // 9 - 11
-  if (CJS_App::Init(*this, JS_STATIC) < 0)
+  if (CJS_App::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Color::Init(*this, JS_STATIC) < 0)
+  if (CJS_Color::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Console::Init(*this, JS_STATIC) < 0)
+  if (CJS_Console::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
 
   // 12 - 14
-  if (CJS_Document::Init(*this, JS_DYNAMIC) < 0)
+  if (CJS_Document::Init(GetIsolate(), JS_DYNAMIC) < 0)
     return FALSE;
-  if (CJS_Event::Init(*this, JS_STATIC) < 0)
+  if (CJS_Event::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Field::Init(*this, JS_DYNAMIC) < 0)
+  if (CJS_Field::Init(GetIsolate(), JS_DYNAMIC) < 0)
     return FALSE;
 
   // 15 - 17
-  if (CJS_Global::Init(*this, JS_STATIC) < 0)
+  if (CJS_Global::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
-  if (CJS_Icon::Init(*this, JS_DYNAMIC) < 0)
+  if (CJS_Icon::Init(GetIsolate(), JS_DYNAMIC) < 0)
     return FALSE;
-  if (CJS_Util::Init(*this, JS_STATIC) < 0)
+  if (CJS_Util::Init(GetIsolate(), JS_STATIC) < 0)
     return FALSE;
 
-  if (CJS_PublicMethods::Init(*this) < 0)
+  if (CJS_PublicMethods::Init(GetIsolate()) < 0)
     return FALSE;
-  if (CJS_GlobalConsts::Init(*this) < 0)
+  if (CJS_GlobalConsts::Init(GetIsolate()) < 0)
     return FALSE;
-  if (CJS_GlobalArrays::Init(*this) < 0)
+  if (CJS_GlobalArrays::Init(GetIsolate()) < 0)
     return FALSE;
 
-  if (CJS_TimerObj::Init(*this, JS_DYNAMIC) < 0)
+  if (CJS_TimerObj::Init(GetIsolate(), JS_DYNAMIC) < 0)
     return FALSE;
-  if (CJS_PrintParamsObj::Init(*this, JS_DYNAMIC) < 0)
+  if (CJS_PrintParamsObj::Init(GetIsolate(), JS_DYNAMIC) < 0)
     return FALSE;
 
   return TRUE;
@@ -236,20 +234,17 @@ void CJS_Runtime::SetReaderDocument(CPDFSDK_Document* pReaderDoc) {
     v8::Context::Scope context_scope(context);
 
     m_pDocument = pReaderDoc;
-
     if (pReaderDoc) {
-      JSObject pThis = JS_GetThisObj(*this);
+      v8::Local<v8::Object> pThis = JS_GetThisObj(GetIsolate());
       if (!pThis.IsEmpty()) {
-        if (JS_GetObjDefnID(pThis) == JS_GetObjDefnID(*this, L"Document")) {
+        if (JS_GetObjDefnID(pThis) ==
+            JS_GetObjDefnID(GetIsolate(), L"Document")) {
           if (CJS_Document* pJSDocument = (CJS_Document*)JS_GetPrivate(pThis)) {
             if (Document* pDocument = (Document*)pJSDocument->GetEmbedObject())
               pDocument->AttachDoc(pReaderDoc);
           }
         }
       }
-      JS_SetThisObj(*this, JS_GetObjDefnID(*this, L"Document"));
-    } else {
-      JS_SetThisObj(*this, JS_GetObjDefnID(*this, L"app"));
     }
   }
 }
diff --git a/fpdfsdk/src/javascript/JS_Value.cpp b/fpdfsdk/src/javascript/JS_Value.cpp
index faa1eeb6fc..7fb2116e1f 100644
--- a/fpdfsdk/src/javascript/JS_Value.cpp
+++ b/fpdfsdk/src/javascript/JS_Value.cpp
@@ -39,7 +39,7 @@ CJS_Value::CJS_Value(v8::Isolate* isolate, const double& dValue)
   operator=(dValue);
 }
 
-CJS_Value::CJS_Value(v8::Isolate* isolate, JSFXObject pJsObj)
+CJS_Value::CJS_Value(v8::Isolate* isolate, v8::Local<v8::Object> pJsObj)
     : m_isolate(isolate) {
   operator=(pJsObj);
 }
@@ -53,7 +53,7 @@ CJS_Value::CJS_Value(v8::Isolate* isolate, CJS_Document* pJsDoc)
     : m_isolate(isolate) {
   m_eType = VT_object;
   if (pJsDoc)
-    m_pValue = (JSFXObject)*pJsDoc;
+    m_pValue = (v8::Local<v8::Object>)*pJsDoc;
 }
 
 CJS_Value::CJS_Value(v8::Isolate* isolate, const FX_WCHAR* pWstr)
@@ -168,13 +168,13 @@ void CJS_Value::operator=(v8::Local<v8::Object> pObj) {
 
 void CJS_Value::operator=(CJS_Object* pObj) {
   if (pObj)
-    operator=((JSFXObject)*pObj);
+    operator=((v8::Local<v8::Object>)*pObj);
 }
 
 void CJS_Value::operator=(CJS_Document* pJsDoc) {
   m_eType = VT_object;
   if (pJsDoc) {
-    m_pValue = static_cast<JSFXObject>(*pJsDoc);
+    m_pValue = static_cast<v8::Local<v8::Object>>(*pJsDoc);
   }
 }
 
@@ -341,12 +341,12 @@ void CJS_PropValue::operator>>(CJS_Document*& ppJsDoc) const {
   ppJsDoc = static_cast<CJS_Document*>(CJS_Value::ToCJSObject());
 }
 
-void CJS_PropValue::operator<<(JSFXObject pObj) {
+void CJS_PropValue::operator<<(v8::Local<v8::Object> pObj) {
   ASSERT(!m_bIsSetting);
   CJS_Value::operator=(pObj);
 }
 
-void CJS_PropValue::operator>>(JSFXObject& ppObj) const {
+void CJS_PropValue::operator>>(v8::Local<v8::Object>& ppObj) const {
   ASSERT(m_bIsSetting);
   ppObj = CJS_Value::ToV8Object();
 }
diff --git a/fpdfsdk/src/javascript/app.cpp b/fpdfsdk/src/javascript/app.cpp
index 6db5d9a97f..a6794514d9 100644
--- a/fpdfsdk/src/javascript/app.cpp
+++ b/fpdfsdk/src/javascript/app.cpp
@@ -122,13 +122,15 @@ FX_BOOL app::activeDocs(IFXJS_Context* cc,
   if (CPDFSDK_Document* pDoc = pApp->GetSDKDocument()) {
     CJS_Document* pJSDocument = NULL;
     if (pDoc == pCurDoc) {
-      JSFXObject pObj = JS_GetThisObj(*pRuntime);
-      if (JS_GetObjDefnID(pObj) == JS_GetObjDefnID(*pRuntime, L"Document"))
+      v8::Local<v8::Object> pObj = JS_GetThisObj(pRuntime->GetIsolate());
+      if (JS_GetObjDefnID(pObj) ==
+          JS_GetObjDefnID(pRuntime->GetIsolate(), L"Document"))
         pJSDocument =
             (CJS_Document*)JS_GetPrivate(pRuntime->GetIsolate(), pObj);
     } else {
-      JSFXObject pObj = JS_NewFxDynamicObj(
-          *pRuntime, pContext, JS_GetObjDefnID(*pRuntime, L"Document"));
+      v8::Local<v8::Object> pObj = JS_NewFxDynamicObj(
+          pRuntime->GetIsolate(), pContext,
+          JS_GetObjDefnID(pRuntime->GetIsolate(), L"Document"));
       pJSDocument = (CJS_Document*)JS_GetPrivate(pRuntime->GetIsolate(), pObj);
       ASSERT(pJSDocument != NULL);
     }
@@ -268,7 +270,7 @@ FX_BOOL app::alert(IFXJS_Context* cc,
 
   if (iSize == 1) {
     if (params[0].GetType() == VT_object) {
-      JSObject pObj = params[0].ToV8Object();
+      v8::Local<v8::Object> pObj = params[0].ToV8Object();
       {
         v8::Local<v8::Value> pValue =
             JS_GetObjectElement(isolate, pObj, L"cMsg");
@@ -413,8 +415,9 @@ FX_BOOL app::setInterval(IFXJS_Context* cc,
   //	pTimer->SetStartTime(GetTickCount());
   pTimer->SetJSTimer(dwInterval);
 
-  JSFXObject pRetObj = JS_NewFxDynamicObj(
-      *pRuntime, pContext, JS_GetObjDefnID(*pRuntime, L"TimerObj"));
+  v8::Local<v8::Object> pRetObj =
+      JS_NewFxDynamicObj(pRuntime->GetIsolate(), pContext,
+                         JS_GetObjDefnID(pRuntime->GetIsolate(), L"TimerObj"));
 
   CJS_TimerObj* pJS_TimerObj =
       (CJS_TimerObj*)JS_GetPrivate(pRuntime->GetIsolate(), pRetObj);
@@ -465,8 +468,9 @@ FX_BOOL app::setTimeOut(IFXJS_Context* cc,
   pTimer->SetTimeOut(dwTimeOut);
   pTimer->SetJSTimer(dwTimeOut);
 
-  JSFXObject pRetObj = JS_NewFxDynamicObj(
-      *pRuntime, pContext, JS_GetObjDefnID(*pRuntime, L"TimerObj"));
+  v8::Local<v8::Object> pRetObj =
+      JS_NewFxDynamicObj(pRuntime->GetIsolate(), pContext,
+                         JS_GetObjDefnID(pRuntime->GetIsolate(), L"TimerObj"));
 
   CJS_TimerObj* pJS_TimerObj =
       (CJS_TimerObj*)JS_GetPrivate(pRuntime->GetIsolate(), pRetObj);
@@ -497,9 +501,10 @@ FX_BOOL app::clearTimeOut(IFXJS_Context* cc,
   }
 
   if (params[0].GetType() == VT_fxobject) {
-    JSFXObject pObj = params[0].ToV8Object();
+    v8::Local<v8::Object> pObj = params[0].ToV8Object();
     {
-      if (JS_GetObjDefnID(pObj) == JS_GetObjDefnID(*pRuntime, L"TimerObj")) {
+      if (JS_GetObjDefnID(pObj) ==
+          JS_GetObjDefnID(pRuntime->GetIsolate(), L"TimerObj")) {
         if (CJS_Object* pJSObj = params[0].ToCJSObject()) {
           if (TimerObj* pTimerObj = (TimerObj*)pJSObj->GetEmbedObject()) {
             if (CJS_Timer* pTimer = pTimerObj->GetTimer()) {
@@ -539,9 +544,10 @@ FX_BOOL app::clearInterval(IFXJS_Context* cc,
   }
 
   if (params[0].GetType() == VT_fxobject) {
-    JSFXObject pObj = params[0].ToV8Object();
+    v8::Local<v8::Object> pObj = params[0].ToV8Object();
     {
-      if (JS_GetObjDefnID(pObj) == JS_GetObjDefnID(*pRuntime, L"TimerObj")) {
+      if (JS_GetObjDefnID(pObj) ==
+          JS_GetObjDefnID(pRuntime->GetIsolate(), L"TimerObj")) {
         if (CJS_Object* pJSObj = params[0].ToCJSObject()) {
           if (TimerObj* pTimerObj = (TimerObj*)pJSObj->GetEmbedObject()) {
             if (CJS_Timer* pTimer = pTimerObj->GetTimer()) {
@@ -636,7 +642,7 @@ FX_BOOL app::mailMsg(IFXJS_Context* cc,
     return FALSE;
 
   if (params[0].GetType() == VT_object) {
-    JSObject pObj = params[0].ToV8Object();
+    v8::Local<v8::Object> pObj = params[0].ToV8Object();
 
     v8::Local<v8::Value> pValue = JS_GetObjectElement(isolate, pObj, L"bUI");
     bUI = CJS_Value(isolate, pValue, GET_VALUE_TYPE(pValue)).ToBool();
@@ -774,7 +780,7 @@ FX_BOOL app::response(IFXJS_Context* cc,
 
   int iLength = params.size();
   if (iLength > 0 && params[0].GetType() == VT_object) {
-    JSObject pObj = params[0].ToV8Object();
+    v8::Local<v8::Object> pObj = params[0].ToV8Object();
     v8::Local<v8::Value> pValue =
         JS_GetObjectElement(isolate, pObj, L"cQuestion");
     swQuestion =
diff --git a/fpdfsdk/src/javascript/global.cpp b/fpdfsdk/src/javascript/global.cpp
index 94148762e2..e817eca32c 100644
--- a/fpdfsdk/src/javascript/global.cpp
+++ b/fpdfsdk/src/javascript/global.cpp
@@ -158,7 +158,7 @@ FX_BOOL JSGlobalAlternate::DoProperty(IFXJS_Context* cc,
                                   false, sData, v8::Local<v8::Object>(), FALSE);
       }
       case VT_object: {
-        JSObject pData;
+        v8::Local<v8::Object> pData;
         vp >> pData;
         return SetGlobalVariables(sPropName, JS_GLOBALDATA_TYPE_OBJECT, 0,
                                   false, "", pData, FALSE);
@@ -246,7 +246,7 @@ void JSGlobalAlternate::UpdateGlobalPersistentVariables() {
         SetGlobalVariables(pData->data.sKey, JS_GLOBALDATA_TYPE_NUMBER,
                            pData->data.dData, false, "",
                            v8::Local<v8::Object>(), pData->bPersistent == 1);
-        JS_PutObjectNumber(NULL, (JSFXObject)(*m_pJSObject),
+        JS_PutObjectNumber(NULL, (v8::Local<v8::Object>)(*m_pJSObject),
                            pData->data.sKey.UTF8Decode().c_str(),
                            pData->data.dData);
         break;
@@ -254,7 +254,7 @@ void JSGlobalAlternate::UpdateGlobalPersistentVariables() {
         SetGlobalVariables(pData->data.sKey, JS_GLOBALDATA_TYPE_BOOLEAN, 0,
                            (bool)(pData->data.bData == 1), "",
                            v8::Local<v8::Object>(), pData->bPersistent == 1);
-        JS_PutObjectBoolean(NULL, (JSFXObject)(*m_pJSObject),
+        JS_PutObjectBoolean(NULL, (v8::Local<v8::Object>)(*m_pJSObject),
                             pData->data.sKey.UTF8Decode().c_str(),
                             (bool)(pData->data.bData == 1));
         break;
@@ -262,27 +262,29 @@ void JSGlobalAlternate::UpdateGlobalPersistentVariables() {
         SetGlobalVariables(pData->data.sKey, JS_GLOBALDATA_TYPE_STRING, 0,
                            false, pData->data.sData, v8::Local<v8::Object>(),
                            pData->bPersistent == 1);
-        JS_PutObjectString(NULL, (JSFXObject)(*m_pJSObject),
+        JS_PutObjectString(NULL, (v8::Local<v8::Object>)(*m_pJSObject),
                            pData->data.sKey.UTF8Decode().c_str(),
                            pData->data.sData.UTF8Decode().c_str());
         break;
       case JS_GLOBALDATA_TYPE_OBJECT: {
-        IJS_Runtime* pRuntime = JS_GetRuntime((JSFXObject)(*m_pJSObject));
+        v8::Isolate* pRuntime =
+            JS_GetRuntime((v8::Local<v8::Object>)(*m_pJSObject));
         v8::Local<v8::Object> pObj = JS_NewFxDynamicObj(pRuntime, NULL, -1);
 
         PutObjectProperty(pObj, &pData->data);
 
         SetGlobalVariables(pData->data.sKey, JS_GLOBALDATA_TYPE_OBJECT, 0,
-                           false, "", (JSObject)pObj, pData->bPersistent == 1);
-        JS_PutObjectObject(NULL, (JSFXObject)(*m_pJSObject),
+                           false, "", (v8::Local<v8::Object>)pObj,
+                           pData->bPersistent == 1);
+        JS_PutObjectObject(NULL, (v8::Local<v8::Object>)(*m_pJSObject),
                            pData->data.sKey.UTF8Decode().c_str(),
-                           (JSObject)pObj);
+                           (v8::Local<v8::Object>)pObj);
       } break;
       case JS_GLOBALDATA_TYPE_NULL:
         SetGlobalVariables(pData->data.sKey, JS_GLOBALDATA_TYPE_NULL, 0, false,
                            "", v8::Local<v8::Object>(),
                            pData->bPersistent == 1);
-        JS_PutObjectNull(NULL, (JSFXObject)(*m_pJSObject),
+        JS_PutObjectNull(NULL, (v8::Local<v8::Object>)(*m_pJSObject),
                          pData->data.sKey.UTF8Decode().c_str());
         break;
     }
@@ -398,30 +400,31 @@ void JSGlobalAlternate::PutObjectProperty(v8::Local<v8::Object> pObj,
 
     switch (pObjData->nType) {
       case JS_GLOBALDATA_TYPE_NUMBER:
-        JS_PutObjectNumber(NULL, (JSObject)pObj,
+        JS_PutObjectNumber(NULL, (v8::Local<v8::Object>)pObj,
                            pObjData->sKey.UTF8Decode().c_str(),
                            pObjData->dData);
         break;
       case JS_GLOBALDATA_TYPE_BOOLEAN:
-        JS_PutObjectBoolean(NULL, (JSObject)pObj,
+        JS_PutObjectBoolean(NULL, (v8::Local<v8::Object>)pObj,
                             pObjData->sKey.UTF8Decode().c_str(),
                             (bool)(pObjData->bData == 1));
         break;
       case JS_GLOBALDATA_TYPE_STRING:
-        JS_PutObjectString(NULL, (JSObject)pObj,
+        JS_PutObjectString(NULL, (v8::Local<v8::Object>)pObj,
                            pObjData->sKey.UTF8Decode().c_str(),
                            pObjData->sData.UTF8Decode().c_str());
         break;
       case JS_GLOBALDATA_TYPE_OBJECT: {
-        IJS_Runtime* pRuntime = JS_GetRuntime((JSFXObject)(*m_pJSObject));
+        v8::Isolate* pRuntime =
+            JS_GetRuntime((v8::Local<v8::Object>)(*m_pJSObject));
         v8::Local<v8::Object> pNewObj = JS_NewFxDynamicObj(pRuntime, NULL, -1);
         PutObjectProperty(pNewObj, pObjData);
-        JS_PutObjectObject(NULL, (JSObject)pObj,
+        JS_PutObjectObject(NULL, (v8::Local<v8::Object>)pObj,
                            pObjData->sKey.UTF8Decode().c_str(),
-                           (JSObject)pNewObj);
+                           (v8::Local<v8::Object>)pNewObj);
       } break;
       case JS_GLOBALDATA_TYPE_NULL:
-        JS_PutObjectNull(NULL, (JSObject)pObj,
+        JS_PutObjectNull(NULL, (v8::Local<v8::Object>)pObj,
                          pObjData->sKey.UTF8Decode().c_str());
         break;
     }
@@ -440,7 +443,7 @@ FX_BOOL JSGlobalAlternate::SetGlobalVariables(const FX_CHAR* propname,
                                               double dData,
                                               bool bData,
                                               const CFX_ByteString& sData,
-                                              JSObject pData,
+                                              v8::Local<v8::Object> pData,
                                               bool bDefaultPersistent) {
   if (!propname)
     return FALSE;
diff --git a/fpdfsdk/src/jsapi/fxjs_v8.cpp b/fpdfsdk/src/jsapi/fxjs_v8.cpp
index 1dd479aec6..b31284847a 100644
--- a/fpdfsdk/src/jsapi/fxjs_v8.cpp
+++ b/fpdfsdk/src/jsapi/fxjs_v8.cpp
@@ -75,37 +75,35 @@ class CJS_ObjDefintion {
   v8::Global<v8::Object> m_StaticObj;
 };
 
-int JS_DefineObj(IJS_Runtime* pJSRuntime,
+int JS_DefineObj(v8::Isolate* pIsolate,
                  const wchar_t* sObjName,
                  FXJSOBJTYPE eObjType,
                  LP_CONSTRUCTOR pConstructor,
                  LP_DESTRUCTOR pDestructor) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray) {
     pArray = new CFX_PtrArray();
-    isolate->SetData(g_embedderDataSlot, pArray);
+    pIsolate->SetData(g_embedderDataSlot, pArray);
   }
-  CJS_ObjDefintion* pObjDef = new CJS_ObjDefintion(isolate, sObjName, eObjType,
+  CJS_ObjDefintion* pObjDef = new CJS_ObjDefintion(pIsolate, sObjName, eObjType,
                                                    pConstructor, pDestructor);
   pArray->Add(pObjDef);
   return pArray->GetSize() - 1;
 }
 
-int JS_DefineObjMethod(IJS_Runtime* pJSRuntime,
+int JS_DefineObjMethod(v8::Isolate* pIsolate,
                        int nObjDefnID,
                        const wchar_t* sMethodName,
                        v8::FunctionCallback pMethodCall) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
 
   CFX_WideString ws = CFX_WideString(sMethodName);
   CFX_ByteString bsMethodName = ws.UTF8Encode();
 
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return 0;
 
@@ -113,28 +111,27 @@ int JS_DefineObjMethod(IJS_Runtime* pJSRuntime,
     return 0;
   CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
   v8::Local<v8::ObjectTemplate> objTemp =
-      v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate);
-  objTemp->Set(v8::String::NewFromUtf8(isolate, bsMethodName.c_str(),
-                                       v8::NewStringType::kNormal)
-                   .ToLocalChecked(),
-               v8::FunctionTemplate::New(isolate, pMethodCall), v8::ReadOnly);
-  pObjDef->m_objTemplate.Reset(isolate, objTemp);
+      v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
+  objTemp->Set(
+      v8::String::NewFromUtf8(pIsolate, bsMethodName.c_str(),
+                              v8::NewStringType::kNormal).ToLocalChecked(),
+      v8::FunctionTemplate::New(pIsolate, pMethodCall), v8::ReadOnly);
+  pObjDef->m_objTemplate.Reset(pIsolate, objTemp);
   return 0;
 }
 
-int JS_DefineObjProperty(IJS_Runtime* pJSRuntime,
+int JS_DefineObjProperty(v8::Isolate* pIsolate,
                          int nObjDefnID,
                          const wchar_t* sPropName,
                          v8::AccessorGetterCallback pPropGet,
                          v8::AccessorSetterCallback pPropPut) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
 
   CFX_WideString ws = CFX_WideString(sPropName);
   CFX_ByteString bsPropertyName = ws.UTF8Encode();
 
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return 0;
 
@@ -142,26 +139,25 @@ int JS_DefineObjProperty(IJS_Runtime* pJSRuntime,
     return 0;
   CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
   v8::Local<v8::ObjectTemplate> objTemp =
-      v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate);
-  objTemp->SetAccessor(v8::String::NewFromUtf8(isolate, bsPropertyName.c_str(),
-                                               v8::NewStringType::kNormal)
-                           .ToLocalChecked(),
-                       pPropGet, pPropPut);
-  pObjDef->m_objTemplate.Reset(isolate, objTemp);
+      v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
+  objTemp->SetAccessor(
+      v8::String::NewFromUtf8(pIsolate, bsPropertyName.c_str(),
+                              v8::NewStringType::kNormal).ToLocalChecked(),
+      pPropGet, pPropPut);
+  pObjDef->m_objTemplate.Reset(pIsolate, objTemp);
   return 0;
 }
 
-int JS_DefineObjAllProperties(IJS_Runtime* pJSRuntime,
+int JS_DefineObjAllProperties(v8::Isolate* pIsolate,
                               int nObjDefnID,
                               v8::NamedPropertyQueryCallback pPropQurey,
                               v8::NamedPropertyGetterCallback pPropGet,
                               v8::NamedPropertySetterCallback pPropPut,
                               v8::NamedPropertyDeleterCallback pPropDel) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
 
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return 0;
 
@@ -169,21 +165,20 @@ int JS_DefineObjAllProperties(IJS_Runtime* pJSRuntime,
     return 0;
   CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
   v8::Local<v8::ObjectTemplate> objTemp =
-      v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate);
+      v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
   objTemp->SetNamedPropertyHandler(pPropGet, pPropPut, pPropQurey, pPropDel);
-  pObjDef->m_objTemplate.Reset(isolate, objTemp);
+  pObjDef->m_objTemplate.Reset(pIsolate, objTemp);
   return 0;
 }
 
-int JS_DefineObjConst(IJS_Runtime* pJSRuntime,
+int JS_DefineObjConst(v8::Isolate* pIsolate,
                       int nObjDefnID,
                       const wchar_t* sConstName,
                       v8::Local<v8::Value> pDefault) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
 
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return 0;
 
@@ -194,19 +189,18 @@ int JS_DefineObjConst(IJS_Runtime* pJSRuntime,
     return 0;
   CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
   v8::Local<v8::ObjectTemplate> objTemp =
-      v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate);
-  objTemp->Set(isolate, bsConstName.c_str(), pDefault);
-  pObjDef->m_objTemplate.Reset(isolate, objTemp);
+      v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
+  objTemp->Set(pIsolate, bsConstName.c_str(), pDefault);
+  pObjDef->m_objTemplate.Reset(pIsolate, objTemp);
   return 0;
 }
 
 static v8::Global<v8::ObjectTemplate>& _getGlobalObjectTemplate(
-    IJS_Runtime* pJSRuntime) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+    v8::Isolate* pIsolate) {
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
 
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   ASSERT(pArray != NULL);
   for (int i = 0; i < pArray->GetSize(); i++) {
     CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(i);
@@ -217,42 +211,40 @@ static v8::Global<v8::ObjectTemplate>& _getGlobalObjectTemplate(
   return gloabalObjectTemplate;
 }
 
-int JS_DefineGlobalMethod(IJS_Runtime* pJSRuntime,
+int JS_DefineGlobalMethod(v8::Isolate* pIsolate,
                           const wchar_t* sMethodName,
                           v8::FunctionCallback pMethodCall) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
 
   CFX_WideString ws = CFX_WideString(sMethodName);
   CFX_ByteString bsMethodName = ws.UTF8Encode();
 
   v8::Local<v8::FunctionTemplate> funTempl =
-      v8::FunctionTemplate::New(isolate, pMethodCall);
+      v8::FunctionTemplate::New(pIsolate, pMethodCall);
   v8::Local<v8::ObjectTemplate> objTemp;
 
   v8::Global<v8::ObjectTemplate>& globalObjTemp =
-      _getGlobalObjectTemplate(pJSRuntime);
+      _getGlobalObjectTemplate(pIsolate);
   if (globalObjTemp.IsEmpty())
-    objTemp = v8::ObjectTemplate::New(isolate);
+    objTemp = v8::ObjectTemplate::New(pIsolate);
   else
-    objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, globalObjTemp);
-  objTemp->Set(v8::String::NewFromUtf8(isolate, bsMethodName.c_str(),
-                                       v8::NewStringType::kNormal)
-                   .ToLocalChecked(),
-               funTempl, v8::ReadOnly);
+    objTemp = v8::Local<v8::ObjectTemplate>::New(pIsolate, globalObjTemp);
+  objTemp->Set(
+      v8::String::NewFromUtf8(pIsolate, bsMethodName.c_str(),
+                              v8::NewStringType::kNormal).ToLocalChecked(),
+      funTempl, v8::ReadOnly);
 
-  globalObjTemp.Reset(isolate, objTemp);
+  globalObjTemp.Reset(pIsolate, objTemp);
 
   return 0;
 }
 
-int JS_DefineGlobalConst(IJS_Runtime* pJSRuntime,
+int JS_DefineGlobalConst(v8::Isolate* pIsolate,
                          const wchar_t* sConstName,
                          v8::Local<v8::Value> pDefault) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
 
   CFX_WideString ws = CFX_WideString(sConstName);
   CFX_ByteString bsConst = ws.UTF8Encode();
@@ -260,40 +252,39 @@ int JS_DefineGlobalConst(IJS_Runtime* pJSRuntime,
   v8::Local<v8::ObjectTemplate> objTemp;
 
   v8::Global<v8::ObjectTemplate>& globalObjTemp =
-      _getGlobalObjectTemplate(pJSRuntime);
+      _getGlobalObjectTemplate(pIsolate);
   if (globalObjTemp.IsEmpty())
-    objTemp = v8::ObjectTemplate::New(isolate);
+    objTemp = v8::ObjectTemplate::New(pIsolate);
   else
-    objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, globalObjTemp);
-  objTemp->Set(v8::String::NewFromUtf8(isolate, bsConst.c_str(),
-                                       v8::NewStringType::kNormal)
-                   .ToLocalChecked(),
-               pDefault, v8::ReadOnly);
+    objTemp = v8::Local<v8::ObjectTemplate>::New(pIsolate, globalObjTemp);
+  objTemp->Set(
+      v8::String::NewFromUtf8(pIsolate, bsConst.c_str(),
+                              v8::NewStringType::kNormal).ToLocalChecked(),
+      pDefault, v8::ReadOnly);
 
-  globalObjTemp.Reset(isolate, objTemp);
+  globalObjTemp.Reset(pIsolate, objTemp);
 
   return 0;
 }
 
-void JS_InitialRuntime(IJS_Runtime* pJSRuntime,
+void JS_InitialRuntime(v8::Isolate* pIsolate,
                        IFXJS_Runtime* pFXRuntime,
                        IFXJS_Context* context,
                        v8::Global<v8::Context>& v8PersistentContext) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
 
   v8::Global<v8::ObjectTemplate>& globalObjTemp =
-      _getGlobalObjectTemplate(pJSRuntime);
+      _getGlobalObjectTemplate(pIsolate);
   v8::Local<v8::Context> v8Context = v8::Context::New(
-      isolate, NULL,
-      v8::Local<v8::ObjectTemplate>::New(isolate, globalObjTemp));
+      pIsolate, NULL,
+      v8::Local<v8::ObjectTemplate>::New(pIsolate, globalObjTemp));
   v8::Context::Scope context_scope(v8Context);
 
-  v8::Local<v8::External> ptr = v8::External::New(isolate, pFXRuntime);
+  v8::Local<v8::External> ptr = v8::External::New(pIsolate, pFXRuntime);
   v8Context->SetEmbedderData(1, ptr);
 
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return;
 
@@ -302,9 +293,9 @@ void JS_InitialRuntime(IJS_Runtime* pJSRuntime,
     CFX_WideString ws = CFX_WideString(pObjDef->objName);
     CFX_ByteString bs = ws.UTF8Encode();
     v8::Local<v8::String> objName =
-        v8::String::NewFromUtf8(isolate, bs.c_str(), v8::NewStringType::kNormal,
-                                bs.GetLength())
-            .ToLocalChecked();
+        v8::String::NewFromUtf8(pIsolate, bs.c_str(),
+                                v8::NewStringType::kNormal,
+                                bs.GetLength()).ToLocalChecked();
 
     if (pObjDef->objType == JS_DYNAMIC) {
       // Document is set as global object, need to construct it first.
@@ -329,24 +320,23 @@ void JS_InitialRuntime(IJS_Runtime* pJSRuntime,
                                       .ToLocalChecked());
       }
     } else {
-      v8::Local<v8::Object> obj = JS_NewFxDynamicObj(pJSRuntime, context, i);
+      v8::Local<v8::Object> obj = JS_NewFxDynamicObj(pIsolate, context, i);
       v8Context->Global()->Set(v8Context, objName, obj).FromJust();
-      pObjDef->m_StaticObj.Reset(isolate, obj);
+      pObjDef->m_StaticObj.Reset(pIsolate, obj);
     }
   }
-  v8PersistentContext.Reset(isolate, v8Context);
+  v8PersistentContext.Reset(pIsolate, v8Context);
 }
 
-void JS_ReleaseRuntime(IJS_Runtime* pJSRuntime,
+void JS_ReleaseRuntime(v8::Isolate* pIsolate,
                        v8::Global<v8::Context>& v8PersistentContext) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::HandleScope handle_scope(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::HandleScope handle_scope(pIsolate);
   v8::Local<v8::Context> context =
-      v8::Local<v8::Context>::New(isolate, v8PersistentContext);
+      v8::Local<v8::Context>::New(pIsolate, v8PersistentContext);
   v8::Context::Scope context_scope(context);
 
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return;
 
@@ -354,7 +344,7 @@ void JS_ReleaseRuntime(IJS_Runtime* pJSRuntime,
     CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(i);
     if (!pObjDef->m_StaticObj.IsEmpty()) {
       v8::Local<v8::Object> pObj =
-          v8::Local<v8::Object>::New(isolate, pObjDef->m_StaticObj);
+          v8::Local<v8::Object>::New(pIsolate, pObjDef->m_StaticObj);
       if (pObjDef->m_pDestructor)
         pObjDef->m_pDestructor(pObj);
       JS_FreePrivate(pObj);
@@ -362,7 +352,7 @@ void JS_ReleaseRuntime(IJS_Runtime* pJSRuntime,
     delete pObjDef;
   }
   delete pArray;
-  isolate->SetData(g_embedderDataSlot, NULL);
+  pIsolate->SetData(g_embedderDataSlot, NULL);
 }
 
 void JS_Initial(unsigned int embedderDataSlot) {
@@ -372,25 +362,23 @@ void JS_Initial(unsigned int embedderDataSlot) {
 void JS_Release() {
 }
 
-int JS_Execute(IJS_Runtime* pJSRuntime,
+int JS_Execute(v8::Isolate* pIsolate,
                IFXJS_Context* pJSContext,
                const wchar_t* script,
                long length,
                FXJSErr* perror) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::TryCatch try_catch(isolate);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::TryCatch try_catch(pIsolate);
 
   CFX_WideString wsScript(script);
   CFX_ByteString bsScript = wsScript.UTF8Encode();
 
-  v8::Local<v8::Context> context = isolate->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   v8::Local<v8::Script> compiled_script;
-  if (!v8::Script::Compile(context,
-                           v8::String::NewFromUtf8(isolate, bsScript.c_str(),
-                                                   v8::NewStringType::kNormal,
-                                                   bsScript.GetLength())
-                               .ToLocalChecked())
+  if (!v8::Script::Compile(
+           context, v8::String::NewFromUtf8(
+                        pIsolate, bsScript.c_str(), v8::NewStringType::kNormal,
+                        bsScript.GetLength()).ToLocalChecked())
            .ToLocal(&compiled_script)) {
     v8::String::Utf8Value error(try_catch.Exception());
     return -1;
@@ -404,21 +392,20 @@ int JS_Execute(IJS_Runtime* pJSRuntime,
   return 0;
 }
 
-v8::Local<v8::Object> JS_NewFxDynamicObj(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Object> JS_NewFxDynamicObj(v8::Isolate* pIsolate,
                                          IFXJS_Context* pJSContext,
                                          int nObjDefnID) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-  v8::Local<v8::Context> context = isolate->GetCurrentContext();
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   if (-1 == nObjDefnID) {
-    v8::Local<v8::ObjectTemplate> objTempl = v8::ObjectTemplate::New(isolate);
+    v8::Local<v8::ObjectTemplate> objTempl = v8::ObjectTemplate::New(pIsolate);
     v8::Local<v8::Object> obj;
     if (objTempl->NewInstance(context).ToLocal(&obj))
       return obj;
     return v8::Local<v8::Object>();
   }
 
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return v8::Local<v8::Object>();
 
@@ -427,7 +414,7 @@ v8::Local<v8::Object> JS_NewFxDynamicObj(IJS_Runtime* pJSRuntime,
   CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
 
   v8::Local<v8::ObjectTemplate> objTemp =
-      v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate);
+      v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
   v8::Local<v8::Object> obj;
   if (!objTemp->NewInstance(context).ToLocal(&obj))
     return v8::Local<v8::Object>();
@@ -444,11 +431,9 @@ v8::Local<v8::Object> JS_NewFxDynamicObj(IJS_Runtime* pJSRuntime,
   return obj;
 }
 
-v8::Local<v8::Object> JS_GetStaticObj(IJS_Runtime* pJSRuntime, int nObjDefnID) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+v8::Local<v8::Object> JS_GetStaticObj(v8::Isolate* pIsolate, int nObjDefnID) {
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return v8::Local<v8::Object>();
 
@@ -456,23 +441,18 @@ v8::Local<v8::Object> JS_GetStaticObj(IJS_Runtime* pJSRuntime, int nObjDefnID) {
     return v8::Local<v8::Object>();
   CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
   v8::Local<v8::Object> obj =
-      v8::Local<v8::Object>::New(isolate, pObjDef->m_StaticObj);
+      v8::Local<v8::Object>::New(pIsolate, pObjDef->m_StaticObj);
   return obj;
 }
 
-void JS_SetThisObj(IJS_Runtime* pJSRuntime, int nThisObjID) {
-  // Do nothing.
-}
-v8::Local<v8::Object> JS_GetThisObj(IJS_Runtime* pJSRuntime) {
+v8::Local<v8::Object> JS_GetThisObj(v8::Isolate* pIsolate) {
   // Return the global object.
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return v8::Local<v8::Object>();
 
-  v8::Local<v8::Context> context = isolate->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   return context->Global()->GetPrototype()->ToObject(context).ToLocalChecked();
 }
 
@@ -486,7 +466,7 @@ int JS_GetObjDefnID(v8::Local<v8::Object> pObj) {
   return -1;
 }
 
-IJS_Runtime* JS_GetRuntime(v8::Local<v8::Object> pObj) {
+v8::Isolate* JS_GetRuntime(v8::Local<v8::Object> pObj) {
   if (pObj.IsEmpty())
     return NULL;
   v8::Local<v8::Context> context = pObj->CreationContext();
@@ -495,11 +475,9 @@ IJS_Runtime* JS_GetRuntime(v8::Local<v8::Object> pObj) {
   return context->GetIsolate();
 }
 
-int JS_GetObjDefnID(IJS_Runtime* pJSRuntime, const wchar_t* pObjName) {
-  v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
-  v8::Isolate::Scope isolate_scope(isolate);
-
-  CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(g_embedderDataSlot);
+int JS_GetObjDefnID(v8::Isolate* pIsolate, const wchar_t* pObjName) {
+  v8::Isolate::Scope isolate_scope(pIsolate);
+  CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
   if (!pArray)
     return -1;
 
@@ -511,14 +489,14 @@ int JS_GetObjDefnID(IJS_Runtime* pJSRuntime, const wchar_t* pObjName) {
   return -1;
 }
 
-void JS_Error(v8::Isolate* isolate, const CFX_WideString& message) {
+void JS_Error(v8::Isolate* pIsolate, const CFX_WideString& message) {
   // Conversion from pdfium's wchar_t wide-strings to v8's uint16_t
   // wide-strings isn't handled by v8, so use UTF8 as a common
   // intermediate format.
   CFX_ByteString utf8_message = message.UTF8Encode();
-  isolate->ThrowException(v8::String::NewFromUtf8(isolate, utf8_message.c_str(),
-                                                  v8::NewStringType::kNormal)
-                              .ToLocalChecked());
+  pIsolate->ThrowException(
+      v8::String::NewFromUtf8(pIsolate, utf8_message.c_str(),
+                              v8::NewStringType::kNormal).ToLocalChecked());
 }
 
 unsigned JS_CalcHash(const wchar_t* main, unsigned nLen) {
@@ -555,9 +533,7 @@ void* JS_GetPrivate(v8::Local<v8::Object> pObj) {
   return JS_GetPrivate(NULL, pObj);
 }
 
-void JS_SetPrivate(IJS_Runtime* pJSRuntime,
-                   v8::Local<v8::Object> pObj,
-                   void* p) {
+void JS_SetPrivate(v8::Isolate* pIsolate, v8::Local<v8::Object> pObj, void* p) {
   if (pObj.IsEmpty() || !pObj->InternalFieldCount())
     return;
   CJS_PrivateData* pPrivateData =
@@ -567,7 +543,7 @@ void JS_SetPrivate(IJS_Runtime* pJSRuntime,
   pPrivateData->pPrivate = p;
 }
 
-void* JS_GetPrivate(IJS_Runtime* pJSRuntime, v8::Local<v8::Object> pObj) {
+void* JS_GetPrivate(v8::Isolate* pIsolate, v8::Local<v8::Object> pObj) {
   if (pObj.IsEmpty())
     return NULL;
   CJS_PrivateData* pPrivateData = NULL;
@@ -577,7 +553,7 @@ void* JS_GetPrivate(IJS_Runtime* pJSRuntime, v8::Local<v8::Object> pObj) {
   else {
     // It could be a global proxy object.
     v8::Local<v8::Value> v = pObj->GetPrototype();
-    v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
+    v8::Isolate* isolate = (v8::Isolate*)pIsolate;
     v8::Local<v8::Context> context = isolate->GetCurrentContext();
     if (v->IsObject())
       pPrivateData = (CJS_PrivateData*)v->ToObject(context)
@@ -604,146 +580,132 @@ v8::Local<v8::Value> JS_GetObjectValue(v8::Local<v8::Object> pObj) {
   return pObj;
 }
 
-v8::Local<v8::String> WSToJSString(IJS_Runtime* pJSRuntime,
+v8::Local<v8::String> WSToJSString(v8::Isolate* pIsolate,
                                    const wchar_t* PropertyName,
                                    int Len = -1) {
   CFX_WideString ws = CFX_WideString(PropertyName, Len);
   CFX_ByteString bs = ws.UTF8Encode();
-  if (!pJSRuntime)
-    pJSRuntime = v8::Isolate::GetCurrent();
-  return v8::String::NewFromUtf8(pJSRuntime, bs.c_str(),
-                                 v8::NewStringType::kNormal)
-      .ToLocalChecked();
+  if (!pIsolate)
+    pIsolate = v8::Isolate::GetCurrent();
+  return v8::String::NewFromUtf8(pIsolate, bs.c_str(),
+                                 v8::NewStringType::kNormal).ToLocalChecked();
 }
 
-v8::Local<v8::Value> JS_GetObjectElement(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Value> JS_GetObjectElement(v8::Isolate* pIsolate,
                                          v8::Local<v8::Object> pObj,
                                          const wchar_t* PropertyName) {
   if (pObj.IsEmpty())
     return v8::Local<v8::Value>();
   v8::Local<v8::Value> val;
-  if (!pObj->Get(pJSRuntime->GetCurrentContext(),
-                 WSToJSString(pJSRuntime, PropertyName))
-           .ToLocal(&val))
+  if (!pObj->Get(pIsolate->GetCurrentContext(),
+                 WSToJSString(pIsolate, PropertyName)).ToLocal(&val))
     return v8::Local<v8::Value>();
   return val;
 }
 
-v8::Local<v8::Array> JS_GetObjectElementNames(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Array> JS_GetObjectElementNames(v8::Isolate* pIsolate,
                                               v8::Local<v8::Object> pObj) {
   if (pObj.IsEmpty())
     return v8::Local<v8::Array>();
   v8::Local<v8::Array> val;
-  if (!pObj->GetPropertyNames(pJSRuntime->GetCurrentContext()).ToLocal(&val))
+  if (!pObj->GetPropertyNames(pIsolate->GetCurrentContext()).ToLocal(&val))
     return v8::Local<v8::Array>();
   return val;
 }
 
-void JS_PutObjectString(IJS_Runtime* pJSRuntime,
+void JS_PutObjectString(v8::Isolate* pIsolate,
                         v8::Local<v8::Object> pObj,
                         const wchar_t* PropertyName,
                         const wchar_t* sValue)  // VT_string
 {
   if (pObj.IsEmpty())
     return;
-  pObj->Set(pJSRuntime->GetCurrentContext(),
-            WSToJSString(pJSRuntime, PropertyName),
-            WSToJSString(pJSRuntime, sValue))
-      .FromJust();
+  pObj->Set(pIsolate->GetCurrentContext(), WSToJSString(pIsolate, PropertyName),
+            WSToJSString(pIsolate, sValue)).FromJust();
 }
 
-void JS_PutObjectNumber(IJS_Runtime* pJSRuntime,
+void JS_PutObjectNumber(v8::Isolate* pIsolate,
                         v8::Local<v8::Object> pObj,
                         const wchar_t* PropertyName,
                         int nValue) {
   if (pObj.IsEmpty())
     return;
-  pObj->Set(pJSRuntime->GetCurrentContext(),
-            WSToJSString(pJSRuntime, PropertyName),
-            v8::Int32::New(pJSRuntime, nValue))
-      .FromJust();
+  pObj->Set(pIsolate->GetCurrentContext(), WSToJSString(pIsolate, PropertyName),
+            v8::Int32::New(pIsolate, nValue)).FromJust();
 }
 
-void JS_PutObjectNumber(IJS_Runtime* pJSRuntime,
+void JS_PutObjectNumber(v8::Isolate* pIsolate,
                         v8::Local<v8::Object> pObj,
                         const wchar_t* PropertyName,
                         float fValue) {
   if (pObj.IsEmpty())
     return;
-  pObj->Set(pJSRuntime->GetCurrentContext(),
-            WSToJSString(pJSRuntime, PropertyName),
-            v8::Number::New(pJSRuntime, (double)fValue))
-      .FromJust();
+  pObj->Set(pIsolate->GetCurrentContext(), WSToJSString(pIsolate, PropertyName),
+            v8::Number::New(pIsolate, (double)fValue)).FromJust();
 }
 
-void JS_PutObjectNumber(IJS_Runtime* pJSRuntime,
+void JS_PutObjectNumber(v8::Isolate* pIsolate,
                         v8::Local<v8::Object> pObj,
                         const wchar_t* PropertyName,
                         double dValue) {
   if (pObj.IsEmpty())
     return;
-  pObj->Set(pJSRuntime->GetCurrentContext(),
-            WSToJSString(pJSRuntime, PropertyName),
-            v8::Number::New(pJSRuntime, (double)dValue))
-      .FromJust();
+  pObj->Set(pIsolate->GetCurrentContext(), WSToJSString(pIsolate, PropertyName),
+            v8::Number::New(pIsolate, (double)dValue)).FromJust();
 }
 
-void JS_PutObjectBoolean(IJS_Runtime* pJSRuntime,
+void JS_PutObjectBoolean(v8::Isolate* pIsolate,
                          v8::Local<v8::Object> pObj,
                          const wchar_t* PropertyName,
                          bool bValue) {
   if (pObj.IsEmpty())
     return;
-  pObj->Set(pJSRuntime->GetCurrentContext(),
-            WSToJSString(pJSRuntime, PropertyName),
-            v8::Boolean::New(pJSRuntime, bValue))
-      .FromJust();
+  pObj->Set(pIsolate->GetCurrentContext(), WSToJSString(pIsolate, PropertyName),
+            v8::Boolean::New(pIsolate, bValue)).FromJust();
 }
 
-void JS_PutObjectObject(IJS_Runtime* pJSRuntime,
+void JS_PutObjectObject(v8::Isolate* pIsolate,
                         v8::Local<v8::Object> pObj,
                         const wchar_t* PropertyName,
                         v8::Local<v8::Object> pPut) {
   if (pObj.IsEmpty())
     return;
-  pObj->Set(pJSRuntime->GetCurrentContext(),
-            WSToJSString(pJSRuntime, PropertyName), pPut)
-      .FromJust();
+  pObj->Set(pIsolate->GetCurrentContext(), WSToJSString(pIsolate, PropertyName),
+            pPut).FromJust();
 }
 
-void JS_PutObjectNull(IJS_Runtime* pJSRuntime,
+void JS_PutObjectNull(v8::Isolate* pIsolate,
                       v8::Local<v8::Object> pObj,
                       const wchar_t* PropertyName) {
   if (pObj.IsEmpty())
     return;
-  pObj->Set(pJSRuntime->GetCurrentContext(),
-            WSToJSString(pJSRuntime, PropertyName), v8::Local<v8::Object>())
-      .FromJust();
+  pObj->Set(pIsolate->GetCurrentContext(), WSToJSString(pIsolate, PropertyName),
+            v8::Local<v8::Object>()).FromJust();
 }
 
-v8::Local<v8::Array> JS_NewArray(IJS_Runtime* pJSRuntime) {
-  return v8::Array::New(pJSRuntime);
+v8::Local<v8::Array> JS_NewArray(v8::Isolate* pIsolate) {
+  return v8::Array::New(pIsolate);
 }
 
-unsigned JS_PutArrayElement(IJS_Runtime* pJSRuntime,
+unsigned JS_PutArrayElement(v8::Isolate* pIsolate,
                             v8::Local<v8::Array> pArray,
                             unsigned index,
                             v8::Local<v8::Value> pValue,
                             FXJSVALUETYPE eType) {
   if (pArray.IsEmpty())
     return 0;
-  if (pArray->Set(pJSRuntime->GetCurrentContext(), index, pValue).IsNothing())
+  if (pArray->Set(pIsolate->GetCurrentContext(), index, pValue).IsNothing())
     return 0;
   return 1;
 }
 
-v8::Local<v8::Value> JS_GetArrayElement(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Value> JS_GetArrayElement(v8::Isolate* pIsolate,
                                         v8::Local<v8::Array> pArray,
                                         unsigned index) {
   if (pArray.IsEmpty())
     return v8::Local<v8::Value>();
   v8::Local<v8::Value> val;
-  if (!pArray->Get(pJSRuntime->GetCurrentContext(), index).ToLocal(&val))
+  if (!pArray->Get(pIsolate->GetCurrentContext(), index).ToLocal(&val))
     return v8::Local<v8::Value>();
   return val;
 }
@@ -754,63 +716,63 @@ unsigned JS_GetArrayLength(v8::Local<v8::Array> pArray) {
   return pArray->Length();
 }
 
-v8::Local<v8::Value> JS_NewNumber(IJS_Runtime* pJSRuntime, int number) {
-  return v8::Int32::New(pJSRuntime, number);
+v8::Local<v8::Value> JS_NewNumber(v8::Isolate* pIsolate, int number) {
+  return v8::Int32::New(pIsolate, number);
 }
 
-v8::Local<v8::Value> JS_NewNumber(IJS_Runtime* pJSRuntime, double number) {
-  return v8::Number::New(pJSRuntime, number);
+v8::Local<v8::Value> JS_NewNumber(v8::Isolate* pIsolate, double number) {
+  return v8::Number::New(pIsolate, number);
 }
 
-v8::Local<v8::Value> JS_NewNumber(IJS_Runtime* pJSRuntime, float number) {
-  return v8::Number::New(pJSRuntime, (float)number);
+v8::Local<v8::Value> JS_NewNumber(v8::Isolate* pIsolate, float number) {
+  return v8::Number::New(pIsolate, (float)number);
 }
 
-v8::Local<v8::Value> JS_NewBoolean(IJS_Runtime* pJSRuntime, bool b) {
-  return v8::Boolean::New(pJSRuntime, b);
+v8::Local<v8::Value> JS_NewBoolean(v8::Isolate* pIsolate, bool b) {
+  return v8::Boolean::New(pIsolate, b);
 }
 
-v8::Local<v8::Value> JS_NewObject(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Value> JS_NewObject(v8::Isolate* pIsolate,
                                   v8::Local<v8::Object> pObj) {
   if (pObj.IsEmpty())
     return v8::Local<v8::Value>();
   return pObj->Clone();
 }
 
-v8::Local<v8::Value> JS_NewObject2(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Value> JS_NewObject2(v8::Isolate* pIsolate,
                                    v8::Local<v8::Array> pObj) {
   if (pObj.IsEmpty())
     return v8::Local<v8::Value>();
   return pObj->Clone();
 }
 
-v8::Local<v8::Value> JS_NewString(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Value> JS_NewString(v8::Isolate* pIsolate,
                                   const wchar_t* string) {
-  return WSToJSString(pJSRuntime, string);
+  return WSToJSString(pIsolate, string);
 }
 
-v8::Local<v8::Value> JS_NewString(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Value> JS_NewString(v8::Isolate* pIsolate,
                                   const wchar_t* string,
                                   unsigned nLen) {
-  return WSToJSString(pJSRuntime, string, nLen);
+  return WSToJSString(pIsolate, string, nLen);
 }
 
 v8::Local<v8::Value> JS_NewNull() {
   return v8::Local<v8::Value>();
 }
 
-v8::Local<v8::Value> JS_NewDate(IJS_Runtime* pJSRuntime, double d) {
-  return v8::Date::New(pJSRuntime->GetCurrentContext(), d).ToLocalChecked();
+v8::Local<v8::Value> JS_NewDate(v8::Isolate* pIsolate, double d) {
+  return v8::Date::New(pIsolate->GetCurrentContext(), d).ToLocalChecked();
 }
 
-v8::Local<v8::Value> JS_NewValue(IJS_Runtime* pJSRuntime) {
+v8::Local<v8::Value> JS_NewValue(v8::Isolate* pIsolate) {
   return v8::Local<v8::Value>();
 }
 
-v8::Local<v8::Value> JS_GetListValue(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Value> JS_GetListValue(v8::Isolate* pIsolate,
                                      v8::Local<v8::Value> pList,
                                      int index) {
-  v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   if (!pList.IsEmpty() && pList->IsObject()) {
     v8::Local<v8::Object> obj;
     if (pList->ToObject(context).ToLocal(&obj)) {
@@ -822,49 +784,48 @@ v8::Local<v8::Value> JS_GetListValue(IJS_Runtime* pJSRuntime,
   return v8::Local<v8::Value>();
 }
 
-int JS_ToInt32(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) {
+int JS_ToInt32(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue) {
   if (pValue.IsEmpty())
     return 0;
-  v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   return pValue->ToInt32(context).ToLocalChecked()->Value();
 }
 
-bool JS_ToBoolean(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) {
+bool JS_ToBoolean(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue) {
   if (pValue.IsEmpty())
     return false;
-  v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   return pValue->ToBoolean(context).ToLocalChecked()->Value();
 }
 
-double JS_ToNumber(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) {
+double JS_ToNumber(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue) {
   if (pValue.IsEmpty())
     return 0.0;
-  v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   return pValue->ToNumber(context).ToLocalChecked()->Value();
 }
 
-v8::Local<v8::Object> JS_ToObject(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Object> JS_ToObject(v8::Isolate* pIsolate,
                                   v8::Local<v8::Value> pValue) {
   if (pValue.IsEmpty())
     return v8::Local<v8::Object>();
-  v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   return pValue->ToObject(context).ToLocalChecked();
 }
 
-CFX_WideString JS_ToString(IJS_Runtime* pJSRuntime,
-                           v8::Local<v8::Value> pValue) {
+CFX_WideString JS_ToString(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue) {
   if (pValue.IsEmpty())
     return L"";
-  v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   v8::String::Utf8Value s(pValue->ToString(context).ToLocalChecked());
   return CFX_WideString::FromUTF8(*s, s.length());
 }
 
-v8::Local<v8::Array> JS_ToArray(IJS_Runtime* pJSRuntime,
+v8::Local<v8::Array> JS_ToArray(v8::Isolate* pIsolate,
                                 v8::Local<v8::Value> pValue) {
   if (pValue.IsEmpty())
     return v8::Local<v8::Array>();
-  v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext();
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
   return v8::Local<v8::Array>::Cast(pValue->ToObject(context).ToLocalChecked());
 }