Enable disabling WebCore::GraphicsContext in telemetry.

cc/layers/picture_image_layer.h

 // Copyright 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_LAYERS_PICTURE_IMAGE_LAYER_H_
 #define CC_LAYERS_PICTURE_IMAGE_LAYER_H_
 
 #include "cc/base/cc_export.h"
 #include "cc/layers/content_layer_client.h"
 #include "cc/layers/picture_layer.h"
@@ skipping 10 matching lines @@
 
   // Layer implementation.
   virtual scoped_ptr<LayerImpl> CreateLayerImpl(
       LayerTreeImpl* tree_impl) OVERRIDE;
   virtual bool DrawsContent() const OVERRIDE;
 
   // ContentLayerClient implementation.
   virtual void PaintContents(
       SkCanvas* canvas,
       const gfx::Rect& clip,
-      gfx::RectF* opaque) OVERRIDE;
+      gfx::RectF* opaque,
+      ContentLayerClient::GraphicsContextStatus gc_status) OVERRIDE;
   virtual void DidChangeLayerCanUseLCDText() OVERRIDE {}
   virtual bool FillsBoundsCompletely() const OVERRIDE;
 
  private:
   PictureImageLayer();
   virtual ~PictureImageLayer();
 
   SkBitmap bitmap_;
 
   DISALLOW_COPY_AND_ASSIGN(PictureImageLayer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_PICTURE_IMAGE_LAYER_H_