cc: Start using raster/eviction iterators.

cc/layers/picture_layer_impl.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_LAYERS_PICTURE_LAYER_IMPL_H_
 #define CC_LAYERS_PICTURE_LAYER_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 115 matching lines @@
       const gfx::Size& content_bounds) const override;
   virtual const Region* GetInvalidation() override;
   virtual const PictureLayerTiling* GetTwinTiling(
       const PictureLayerTiling* tiling) const override;
   virtual PictureLayerTiling* GetRecycledTwinTiling(
       const PictureLayerTiling* tiling) override;
   virtual size_t GetMaxTilesForInterestArea() const override;
   virtual float GetSkewportTargetTimeInSeconds() const override;
   virtual int GetSkewportExtrapolationLimitInContentPixels() const override;
   virtual WhichTree GetTree() const override;
+  virtual bool RequiresHighResToDraw() const override;
 
   // PushPropertiesTo active tree => pending tree.
   void SyncTiling(const PictureLayerTiling* tiling);
 
   // Mask-related functions.
   virtual ResourceProvider::ResourceId ContentsResourceId() const override;
 
   virtual size_t GPUMemoryUsageInBytes() const override;
 
   virtual void RunMicroBenchmark(MicroBenchmarkImpl* benchmark) override;
@@ skipping 15 matching lines @@
   void SyncFromActiveLayer(const PictureLayerImpl* other);
   void AddTilingsForRasterScale();
   void UpdateTilePriorities(const Occlusion& occlusion_in_content_space);
   virtual bool ShouldAdjustRasterScale() const;
   virtual void RecalculateRasterScales();
   void CleanUpTilingsOnActiveLayer(
       std::vector<PictureLayerTiling*> used_tilings);
   float MinimumContentsScale() const;
   float SnappedContentsScale(float new_contents_scale);
   void ResetRasterScale();
-  void MarkVisibleResourcesAsRequired() const;
-  bool MarkVisibleTilesAsRequired(
-      PictureLayerTiling* tiling,
-      const PictureLayerTiling* optional_twin_tiling,
-      const gfx::Rect& rect,
-      const Region& missing_region) const;
   gfx::Rect GetViewportForTilePriorityInContentSpace() const;
   PictureLayerImpl* GetRecycledTwinLayer();
 
   void DoPostCommitInitializationIfNeeded() {
     if (needs_post_commit_initialization_)
       DoPostCommitInitialization();
   }
   void DoPostCommitInitialization();
 
   bool CanHaveTilings() const;
@@ skipping 27 matching lines @@
   float raster_source_scale_;
   float raster_contents_scale_;
   float low_res_raster_contents_scale_;
 
   bool raster_source_scale_is_fixed_;
   bool was_screen_space_transform_animating_;
   bool needs_post_commit_initialization_;
   // A sanity state check to make sure UpdateTilePriorities only gets called
   // after a CalculateContentsScale/ManageTilings.
   bool should_update_tile_priorities_;
+  bool only_used_low_res_last_append_quads_;
 
   // Any draw properties derived from |transform|, |viewport|, and |clip|
   // parameters in LayerTreeHostImpl::SetExternalDrawConstraints are not valid
   // for prioritizing tiles during resourceless software draws. This is because
   // resourceless software draws can have wildly different transforms/viewports
   // from regular draws. Save a copy of the required draw properties of the last
   // frame that has a valid viewport for prioritizing tiles.
   gfx::Rect visible_rect_for_tile_priority_;
 
   friend class PictureLayer;
   DISALLOW_COPY_AND_ASSIGN(PictureLayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_PICTURE_LAYER_IMPL_H_