Provide an array buffer allocator to V8.chromium/2395chromium/2394chromium/2393chromium/2392chromium/2391chromium/2390chromium/2389chromium/2388

This allows PDFium to work with current V8, so unpin v8 in the
pdfium DEPS file.

(I also re-ordered one field in CJS_Runtime, just to put two bools
together (may pack tighter), and to put all the v8 stuff together).

BUG=pdfium:146
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1118043002

1 files changed, 19 insertions, 4 deletions

diff --git a/fpdfsdk/src/javascript/JS_Runtime.cpp b/fpdfsdk/src/javascript/JS_Runtime.cpp
index 4ff3c0bc98..e2f50067e6 100644
--- a/fpdfsdk/src/javascript/JS_Runtime.cpp
+++ b/fpdfsdk/src/javascript/JS_Runtime.cpp
@@ -91,17 +91,32 @@ void CJS_RuntimeFactory::ReleaseGlobalData()
 	}
 }
 
+void* CJS_ArrayBufferAllocator::Allocate(size_t length) {
+    return calloc(1, length);
+}
+
+void* CJS_ArrayBufferAllocator::AllocateUninitialized(size_t length) {
+    return malloc(length);
+}
+
+void CJS_ArrayBufferAllocator::Free(void* data, size_t length) {
+    free(data);
+}
+
 /* ------------------------------ CJS_Runtime ------------------------------ */
 
 CJS_Runtime::CJS_Runtime(CPDFDoc_Environment * pApp) : 
 	m_pApp(pApp),
 	m_pDocument(NULL),
 	m_bBlocking(FALSE),
-	m_pFieldEventPath(NULL),
-	m_bRegistered(FALSE)
+	m_bRegistered(FALSE),
+	m_pFieldEventPath(NULL)
 {
-	m_isolate = v8::Isolate::New();
-	//m_isolate->Enter();
+	m_pArrayBufferAllocator.reset(new CJS_ArrayBufferAllocator());
+
+	v8::Isolate::CreateParams params;
+	params.array_buffer_allocator = m_pArrayBufferAllocator.get();
+	m_isolate = v8::Isolate::New(params);
 
 	InitJSObjects();