Don't free non-tile resources on GPU rasterization toggle

cc/trees/layer_tree_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_TREES_LAYER_TREE_IMPL_H_
 #define CC_TREES_LAYER_TREE_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 51 matching lines @@
   // layer to consider it as jittering.
   enum : int { kFixedPointHitsThreshold = 3 };
   LayerTreeImpl(LayerTreeHostImpl* layer_tree_host_impl,
                 scoped_refptr<SyncedProperty<ScaleGroup>> page_scale_factor,
                 scoped_refptr<SyncedBrowserControls> top_controls_shown_ratio,
                 scoped_refptr<SyncedElasticOverscroll> elastic_overscroll);
   virtual ~LayerTreeImpl();
 
   void Shutdown();
   void ReleaseResources();
-  void RecreateResources();
+  void ReleaseTileResources();
+  void RecreateTileResources();
 
   // Methods called by the layer tree that pass-through or access LTHI.
   // ---------------------------------------------------------------------------
   const LayerTreeSettings& settings() const;
   const LayerTreeDebugState& debug_state() const;
   ContextProvider* context_provider() const;
   ResourceProvider* resource_provider() const;
   TileManager* tile_manager() const;
   ImageDecodeController* image_decode_controller() const;
   FrameRateCounter* frame_rate_counter() const;
@@ skipping 479 matching lines @@
 
   std::unique_ptr<PendingPageScaleAnimation> pending_page_scale_animation_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LayerTreeImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_IMPL_H_