Add drawImage() originClean() getSecurityOrigin() to OffscreenCanvas

third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.h

Index: third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.h
diff --git a/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.h b/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.h
index f97398d3001858850fb96e32c7d8c873e1d3c044..949e11134e9fb9f59dd97983d573e2f570ba95a3 100644
--- a/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.h
+++ b/third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.h
@@ -22,7 +22,7 @@ typedef OffscreenCanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2Renderin
 class CORE_EXPORT OffscreenCanvas final : public GarbageCollected<OffscreenCanvas>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static OffscreenCanvas* create(unsigned width, unsigned height);
+    static OffscreenCanvas* create(ExecutionContext*, unsigned width, unsigned height);
 
     // IDL attributes
     unsigned width() const { return m_size.width(); }
@@ -43,19 +43,28 @@ public:
 
     static void registerRenderingContextFactory(PassOwnPtr<CanvasRenderingContextFactory>);
 
+    SecurityOrigin* getSecurityOrigin() const;
+    bool originClean() const;
+    void setOriginTainted() { m_originClean = false; }
+
+    ExecutionContext* getExecutionContext() const { return m_executionContext; }
+
     DECLARE_VIRTUAL_TRACE();
 
 private:
-    explicit OffscreenCanvas(const IntSize&);
+    explicit OffscreenCanvas(ExecutionContext*, const IntSize&);
 
     using ContextFactoryVector = Vector<OwnPtr<CanvasRenderingContextFactory>>;
     static ContextFactoryVector& renderingContextFactories();
     static CanvasRenderingContextFactory* getRenderingContextFactory(int);
 
     Member<CanvasRenderingContext> m_context;
+    Member<ExecutionContext> m_executionContext;
     int m_canvasId = -1; // DOMNodeIds starts from 0, using -1 to indicate no associated canvas element.
     IntSize m_size;
     bool m_isNeutered = false;
+
+    bool m_originClean;
 };
 
 } // namespace blink