cc: Update discardable image metadata generation to get PaintImages.

cc/raster/image_hijack_canvas.h

 // Copyright 2016 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_RASTER_IMAGE_HIJACK_CANVAS_H_
 #define CC_RASTER_IMAGE_HIJACK_CANVAS_H_
 
 #include <unordered_set>
 
 #include "base/macros.h"
@@ skipping 38 matching lines @@
                  bool use_center,
                  const SkPaint& paint) override;
   void onDrawRRect(const SkRRect& rr, const SkPaint& paint) override;
   void onDrawImageNine(const SkImage* image,
                        const SkIRect& center,
                        const SkRect& dst,
                        const SkPaint* paint) override;
 
   bool ShouldSkipImage(const SkImage* image) const;
   bool ShouldSkipImageInPaint(const SkPaint& paint) const;
+  bool QuickRejectDraw(const SkRect& rect, const SkPaint* paint) const;
 
   ImageDecodeCache* image_decode_cache_;
   const ImageIdFlatSet* images_to_skip_;
   const gfx::ColorSpace target_color_space_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageHijackCanvas);
 };
 
 }  // namespace cc
 
 #endif  // CC_RASTER_IMAGE_HIJACK_CANVAS_H_