Fix content scripts that use WebGL.

third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
  */
 
 #ifndef WebGLRenderingContextBase_h
 #define WebGLRenderingContextBase_h
 
 #include "bindings/core/v8/Nullable.h"
 #include "bindings/core/v8/ScopedPersistent.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "bindings/core/v8/V8PrivateProperty.h"
 #include "core/CoreExport.h"
 #include "core/dom/DOMTypedArray.h"
 #include "core/dom/TypedFlexibleArrayBufferView.h"
 #include "core/html/canvas/CanvasRenderingContext.h"
 #include "core/layout/ContentChangeType.h"
 #include "modules/webgl/WebGLContextAttributes.h"
 #include "modules/webgl/WebGLExtensionName.h"
 #include "modules/webgl/WebGLTexture.h"
 #include "modules/webgl/WebGLVertexArrayObjectBase.h"
 #include "platform/Timer.h"
@@ skipping 985 matching lines @@
     void setBackDrawBuffer(GLenum);
     void setFramebuffer(GLenum, WebGLFramebuffer*);
 
     virtual void restoreCurrentFramebuffer();
     void restoreCurrentTexture2D();
 
     void findNewMaxNonDefaultTextureUnit();
 
     virtual void renderbufferStorageImpl(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, const char* functionName);
 
-    // Ensures that the JavaScript wrappers for objects that are
-    // latched into the context's state, or which are implicitly
-    // linked together (like programs and their attached shaders), are
-    // not garbage collected before they should be.
+    // For optimization purposes when in the main world.
     ScopedPersistent<v8::Array> m_2DTextureWrappers;
     ScopedPersistent<v8::Array> m_2DArrayTextureWrappers;
     ScopedPersistent<v8::Array> m_3DTextureWrappers;
     ScopedPersistent<v8::Array> m_cubeMapTextureWrappers;
     ScopedPersistent<v8::Array> m_extensionWrappers;
 
     // The "catch-all" array for the rest of the preserved object
     // wrappers. The enum below defines how the indices in this array
     // are used.
     enum PreservedWrapperIndex {
         PreservedArrayBuffer,
         PreservedElementArrayBuffer,
         PreservedFramebuffer,
         PreservedProgram,
         PreservedRenderbuffer,
         PreservedDefaultVAO,
         PreservedVAO,
         PreservedTransformFeedback,
     };
     ScopedPersistent<v8::Array> m_miscWrappers;
 
-    static void preserveObjectWrapper(ScriptState*, ScriptWrappable* sourceObject, v8::Local<v8::String> hiddenValueName, ScopedPersistent<v8::Array>* persistentCache, uint32_t index, ScriptWrappable* targetObject);
+    static void preserveObjectWrapper(ScriptState*, ScriptWrappable* sourceObject, const V8PrivateProperty::Symbol& privateSymbol, ScopedPersistent<v8::Array>* persistentCache, uint32_t index, ScriptWrappable* targetObject);
 
     // Called to lazily instantiate the wrapper for the default VAO
     // during calls to bindBuffer and vertexAttribPointer (from
     // JavaScript).
     void maybePreserveDefaultVAOObjectWrapper(ScriptState*);
 
     virtual bool transformFeedbackActive() const { return false; }
     virtual bool transformFeedbackPaused() const { return false; }
 
     friend class WebGLStateRestorer;
@@ skipping 18 matching lines @@
     static PassOwnPtr<WebGraphicsContext3DProvider> createContextProviderInternal(HTMLCanvasElement*, ScriptState*, WebGLContextAttributes, unsigned);
 };
 
 DEFINE_TYPE_CASTS(WebGLRenderingContextBase, CanvasRenderingContext, context, context->is3d(), context.is3d());
 
 } // namespace blink
 
 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::WebGLRenderingContextBase::TextureUnitState);
 
 #endif // WebGLRenderingContextBase_h