[cc] Add nearest neighbor filtering for TextureLayer.

cc/layers/texture_layer.h

 // Copyright 2010 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_H_
 #define CC_LAYERS_TEXTURE_LAYER_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 82 matching lines @@
 
   // Resets the texture.
   void ClearTexture();
 
   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
 
   // Sets whether this texture should be Y-flipped at draw time. Defaults to
   // true.
   void SetFlipped(bool flipped);
 
+  // Sets whether this texture should use nearest neighbor interpolation as
+  // opposed to bilinear. Defaults to false.
+  void SetNearestNeighbor(bool nearest_neighbor);
+
   // Sets a UV transform to be used at draw time. Defaults to (0, 0) and (1, 1).
   void SetUV(const gfx::PointF& top_left, const gfx::PointF& bottom_right);
 
   // Sets an opacity value per vertex. It will be multiplied by the layer
   // opacity value.
   void SetVertexOpacity(float bottom_left,
                         float top_left,
                         float top_right,
                         float bottom_right);
 
@@ skipping 36 matching lines @@
  private:
   void SetTextureMailboxInternal(
       const TextureMailbox& mailbox,
       scoped_ptr<SingleReleaseCallback> release_callback,
       bool requires_commit,
       bool allow_mailbox_reuse);
 
   TextureLayerClient* client_;
 
   bool flipped_;
+  bool nearest_neighbor_;
   gfx::PointF uv_top_left_;
   gfx::PointF uv_bottom_right_;
   // [bottom left, top left, top right, bottom right]
   float vertex_opacity_[4];
   bool premultiplied_alpha_;
   bool blend_background_color_;
   bool rate_limit_context_;
 
   scoped_ptr<TextureMailboxHolder::MainThreadReference> holder_ref_;
   bool needs_set_mailbox_;
 
   DISALLOW_COPY_AND_ASSIGN(TextureLayer);
 };
 
 }  // namespace cc
 #endif  // CC_LAYERS_TEXTURE_LAYER_H_