cc : Snap texture layers to pixel boundary

cc/layers/texture_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_TEXTURE_LAYER_IMPL_H_
 #define CC_LAYERS_TEXTURE_LAYER_IMPL_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "cc/base/cc_export.h"
 #include "cc/layers/layer_impl.h"
 
 namespace cc {
 class SingleReleaseCallbackImpl;
 class ScopedResource;
 
 class CC_EXPORT TextureLayerImpl : public LayerImpl {
  public:
   static std::unique_ptr<TextureLayerImpl> Create(LayerTreeImpl* tree_impl,
                                                   int id) {
     return base::WrapUnique(new TextureLayerImpl(tree_impl, id));
   }
   ~TextureLayerImpl() override;
 
   std::unique_ptr<LayerImpl> CreateLayerImpl(
       LayerTreeImpl* layer_tree_impl) override;
+  bool IsSnapped() override;
   void PushPropertiesTo(LayerImpl* layer) override;
 
   bool WillDraw(DrawMode draw_mode,
                 ResourceProvider* resource_provider) override;
   void AppendQuads(RenderPass* render_pass,
                    AppendQuadsData* append_quads_data) override;
   SimpleEnclosedRegion VisibleOpaqueRegion() const override;
   void ReleaseResources() override;
 
   // These setter methods don't cause any implicit damage, so the texture client
@@ skipping 37 matching lines @@
   std::unique_ptr<SingleReleaseCallbackImpl> release_callback_;
   bool own_mailbox_;
   bool valid_texture_copy_;
 
   DISALLOW_COPY_AND_ASSIGN(TextureLayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_TEXTURE_LAYER_IMPL_H_