[Bindings] Create and use V8 context snapshots

third_party/WebKit/Source/platform/bindings/ScriptWrappable.h

Index: third_party/WebKit/Source/platform/bindings/ScriptWrappable.h
diff --git a/third_party/WebKit/Source/platform/bindings/ScriptWrappable.h b/third_party/WebKit/Source/platform/bindings/ScriptWrappable.h
index 762b8d0b5c1416eaa497e2c93ba4e2c1932259af..10af75f0e8ad396dd89e4f54ea03845b2fc5a622 100644
--- a/third_party/WebKit/Source/platform/bindings/ScriptWrappable.h
+++ b/third_party/WebKit/Source/platform/bindings/ScriptWrappable.h
@@ -155,11 +155,13 @@ class PLATFORM_EXPORT ScriptWrappable : public TraceWrapperBase {
   void MarkWrapper(const WrapperVisitor*) const;
 
  private:
-  // These classes are exceptionally allowed to use mainWorldWrapper().
+  // These classes are exceptionally allowed to use MainWorldWrapper().
   friend class DOMDataStore;
   friend class HeapSnaphotWrapperVisitor;
   friend class V8HiddenValue;
   friend class V8PrivateProperty;
+  // TODO(peria): Remove V8SnapshotUtil from friend class list.
+  friend class V8SnapshotUtil;
 
   v8::Local<v8::Object> MainWorldWrapper(v8::Isolate* isolate) const {
     return v8::Local<v8::Object>::New(isolate, main_world_wrapper_);