Cache gpu suitability in DisplayItemList, remove SetUnsuitable...ForTesting

cc/playback/picture_pile.h

 // Copyright 2012 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_PICTURE_PILE_H_
 #define CC_PLAYBACK_PICTURE_PILE_H_
 
 #include <bitset>
 #include <utility>
 #include <vector>
@@ skipping 20 matching lines @@
                                    RecordingMode recording_mode) override;
   scoped_refptr<RasterSource> CreateRasterSource(
       bool can_use_lcd_text) const override;
   gfx::Size GetSize() const final;
   void SetEmptyBounds() override;
   void SetSlowdownRasterScaleFactor(int factor) override;
   void SetGatherDiscardableImages(bool gather_images) override;
   void SetBackgroundColor(SkColor background_color) override;
   void SetRequiresClear(bool requires_clear) override;
   bool IsSuitableForGpuRasterization() const override;
-  void SetUnsuitableForGpuRasterizationForTesting() override;
 
   typedef std::pair<int, int> PictureMapKey;
   typedef base::hash_map<PictureMapKey, scoped_refptr<const Picture>>
       PictureMap;
 
   // An internal CanRaster check that goes to the picture_map rather than
   // using the recorded_viewport hint.
   bool CanRasterSlowTileCheck(const gfx::Rect& layer_rect) const;
 
   void Clear();
@@ skipping 45 matching lines @@
   void SetBufferPixels(int buffer_pixels);
 
   bool is_suitable_for_gpu_rasterization_;
 
   DISALLOW_COPY_AND_ASSIGN(PicturePile);
 };
 
 }  // namespace cc
 
 #endif  // CC_PLAYBACK_PICTURE_PILE_H_