Adds filter support for offscreen canvas

third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h

Index: third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h
diff --git a/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h b/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h
index aea21e293d88f20e0f64b602e72cde3ff95b3baf..c34d1169de2ff795765f56633b1c21409b919d14 100644
--- a/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h
+++ b/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h
@@ -44,8 +44,8 @@ class MODULES_EXPORT OffscreenCanvasRenderingContext2D final
   ContextType getContextType() const override { return Context2d; }
   bool is2d() const override { return true; }
   void setOffscreenCanvasGetContextResult(OffscreenRenderingContext&) final;
-  void setIsHidden(bool) final { ASSERT_NOT_REACHED(); }
-  void stop() final { ASSERT_NOT_REACHED(); }
+  void setIsHidden(bool) final { NOTREACHED(); }
+  void stop() final { NOTREACHED(); }
   void setCanvasGetContextResult(RenderingContext&) final {}
   void clearRect(double x, double y, double width, double height) override {
     BaseRenderingContext2D::clearRect(x, y, width, height);
@@ -77,6 +77,7 @@ class MODULES_EXPORT OffscreenCanvasRenderingContext2D final
   bool stateHasFilter() final;
   sk_sp<SkImageFilter> stateGetFilter() final;
   void snapshotStateForFilter() final {}
+  void setFilter(const String&);

[Justin Novosad, 2017/01/17 21:59:47]

I see no definition for this new method.

[fserb, 2017/01/17 22:10:42]

wait. Is this a tricky question?
It's right there, I think.

 
   void validateStateStack() const final;