cc: Add checker-imaging support to TileManager.

cc/playback/raster_source.h

 // Copyright 2014 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_PLAYBACK_RASTER_SOURCE_H_
 #define CC_PLAYBACK_RASTER_SOURCE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 13 matching lines @@
 
 namespace cc {
 class DisplayItemList;
 class DrawImage;
 class ImageDecodeCache;
 
 class CC_EXPORT RasterSource : public base::RefCountedThreadSafe<RasterSource> {
  public:
   struct CC_EXPORT PlaybackSettings {
     PlaybackSettings();
+    PlaybackSettings(const PlaybackSettings&);
+    PlaybackSettings(PlaybackSettings&&);
+    ~PlaybackSettings();
 
     // If set to true, this indicates that the canvas has already been
     // rasterized into. This means that the canvas cannot be cleared safely.
     bool playback_to_shared_canvas;
 
     // If set to true, none of the images will be rasterized.
     bool skip_images;
 
     // If set to true, we will use an image hijack canvas, which enables
     // compositor image caching.
     bool use_image_hijack_canvas;
+
+    // If non-empty, an image hijack canvas will be used to skip these images
+    // during raster.
+    // TODO(khushalsagar): Consolidate more settings for playback here? See
+    // crbug.com/691076.
+    ImageIdFlatSet images_to_skip;
   };
 
   static scoped_refptr<RasterSource> CreateFromRecordingSource(
       const RecordingSource* other,
       bool can_use_lcd_text);
 
   // TODO(trchen): Deprecated.
   void PlaybackToCanvas(SkCanvas* canvas,
                         const gfx::Rect& canvas_bitmap_rect,
                         const gfx::Rect& canvas_playback_rect,
@@ skipping 102 matching lines @@
   void RasterCommon(SkCanvas* canvas, SkPicture::AbortCallback* callback) const;
 
   void PrepareForPlaybackToCanvas(SkCanvas* canvas) const;
 
   DISALLOW_COPY_AND_ASSIGN(RasterSource);
 };
 
 }  // namespace cc
 
 #endif  // CC_PLAYBACK_RASTER_SOURCE_H_