Do not try to v8::Object::Clone() any objects

v8::Object::Clone() is deprecated, and gets us into trouble with
some corner cases.  Create a new handle to the same object instead.

Remove FXJS_NewObject() and FXJS_NewObject2(), and replace with
direct assignments.  Pass isolate to FXJS_NewNull() while were
at it, even though not needed, for consistency with all remaining
FXJS_New*() calls.

BUG=628106
R=jochen@chromium.org

Review-Url: https://codereview.chromium.org/2151023002

3 files changed, 5 insertions, 24 deletions

diff --git a/fpdfsdk/javascript/JS_Value.cpp b/fpdfsdk/javascript/JS_Value.cpp
index 53d6d59833..6bc45c555d 100644
--- a/fpdfsdk/javascript/JS_Value.cpp
+++ b/fpdfsdk/javascript/JS_Value.cpp
@@ -186,7 +186,7 @@ void CJS_Value::operator=(float fValue) {
 }
 
 void CJS_Value::operator=(v8::Local<v8::Object> pObj) {
-  m_pValue = FXJS_NewObject(m_pJSRuntime->GetIsolate(), pObj);
+  m_pValue = pObj;
   m_eType = VT_fxobject;
 }
 
@@ -208,7 +208,7 @@ void CJS_Value::operator=(const FX_WCHAR* pWstr) {
 }
 
 void CJS_Value::SetNull() {
-  m_pValue = FXJS_NewNull();
+  m_pValue = FXJS_NewNull(m_pJSRuntime->GetIsolate());
   m_eType = VT_null;
 }
 
@@ -217,8 +217,7 @@ void CJS_Value::operator=(const FX_CHAR* pStr) {
 }
 
 void CJS_Value::operator=(CJS_Array& array) {
-  m_pValue =
-      FXJS_NewObject2(m_pJSRuntime->GetIsolate(), (v8::Local<v8::Array>)array);
+  m_pValue = static_cast<v8::Local<v8::Array>>(array);
   m_eType = VT_object;
 }
 
diff --git a/fxjs/fxjs_v8.cpp b/fxjs/fxjs_v8.cpp
index c98de070ab..8595ac8a71 100644
--- a/fxjs/fxjs_v8.cpp
+++ b/fxjs/fxjs_v8.cpp
@@ -779,25 +779,11 @@ v8::Local<v8::Value> FXJS_NewBoolean(v8::Isolate* pIsolate, bool b) {
   return v8::Boolean::New(pIsolate, b);
 }
 
-v8::Local<v8::Value> FXJS_NewObject(v8::Isolate* pIsolate,
-                                    v8::Local<v8::Object> pObj) {
-  if (pObj.IsEmpty())
-    return v8::Local<v8::Value>();
-  return pObj->Clone();
-}
-
-v8::Local<v8::Value> FXJS_NewObject2(v8::Isolate* pIsolate,
-                                     v8::Local<v8::Array> pObj) {
-  if (pObj.IsEmpty())
-    return v8::Local<v8::Value>();
-  return pObj->Clone();
-}
-
 v8::Local<v8::Value> FXJS_NewString(v8::Isolate* pIsolate, const wchar_t* str) {
   return FXJS_WSToJSString(pIsolate, str);
 }
 
-v8::Local<v8::Value> FXJS_NewNull() {
+v8::Local<v8::Value> FXJS_NewNull(v8::Isolate* pIsolate) {
   return v8::Local<v8::Value>();
 }
 
diff --git a/fxjs/include/fxjs_v8.h b/fxjs/include/fxjs_v8.h
index 465feef5e8..c8cd65be2f 100644
--- a/fxjs/include/fxjs_v8.h
+++ b/fxjs/include/fxjs_v8.h
@@ -263,17 +263,13 @@ unsigned FXJS_PutArrayElement(v8::Isolate* pIsolate,
                               unsigned index,
                               v8::Local<v8::Value> pValue);
 
+v8::Local<v8::Value> FXJS_NewNull(v8::Isolate* pIsolate);
 v8::Local<v8::Array> FXJS_NewArray(v8::Isolate* pIsolate);
 v8::Local<v8::Value> FXJS_NewNumber(v8::Isolate* pIsolate, int number);
 v8::Local<v8::Value> FXJS_NewNumber(v8::Isolate* pIsolate, double number);
 v8::Local<v8::Value> FXJS_NewNumber(v8::Isolate* pIsolate, float number);
 v8::Local<v8::Value> FXJS_NewBoolean(v8::Isolate* pIsolate, bool b);
-v8::Local<v8::Value> FXJS_NewObject(v8::Isolate* pIsolate,
-                                    v8::Local<v8::Object> pObj);
-v8::Local<v8::Value> FXJS_NewObject2(v8::Isolate* pIsolate,
-                                     v8::Local<v8::Array> pObj);
 v8::Local<v8::Value> FXJS_NewString(v8::Isolate* pIsolate, const wchar_t* str);
-v8::Local<v8::Value> FXJS_NewNull();
 v8::Local<v8::Value> FXJS_NewDate(v8::Isolate* pIsolate, double d);
 
 int FXJS_ToInt32(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue);