Remove parts of //cc we aren't using

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"
-#include "base/synchronization/lock.h"
-#include "base/threading/thread_checker.h"
-#include "cc/base/cc_export.h"
-#include "cc/layers/layer.h"
-#include "cc/resources/texture_mailbox.h"
-
-namespace cc {
-class BlockingTaskRunner;
-class SingleReleaseCallback;
-class SingleReleaseCallbackImpl;
-class TextureLayerClient;
-
-// A Layer containing a the rendered output of a plugin instance.
-class CC_EXPORT TextureLayer : public Layer {
- public:
-  class CC_EXPORT TextureMailboxHolder
-      : public base::RefCountedThreadSafe<TextureMailboxHolder> {
-   public:
-    class CC_EXPORT MainThreadReference {
-     public:
-      explicit MainThreadReference(TextureMailboxHolder* holder);
-      ~MainThreadReference();
-      TextureMailboxHolder* holder() { return holder_.get(); }
-
-     private:
-      scoped_refptr<TextureMailboxHolder> holder_;
-      DISALLOW_COPY_AND_ASSIGN(MainThreadReference);
-    };
-
-    const TextureMailbox& mailbox() const { return mailbox_; }
-    void Return(uint32 sync_point, bool is_lost);
-
-    // Gets a ReleaseCallback that can be called from another thread. Note: the
-    // caller must ensure the callback is called.
-    scoped_ptr<SingleReleaseCallbackImpl> GetCallbackForImplThread();
-
-   protected:
-    friend class TextureLayer;
-
-    // Protected visiblity so only TextureLayer and unit tests can create these.
-    static scoped_ptr<MainThreadReference> Create(
-        const TextureMailbox& mailbox,
-        scoped_ptr<SingleReleaseCallback> release_callback);
-    virtual ~TextureMailboxHolder();
-
-   private:
-    friend class base::RefCountedThreadSafe<TextureMailboxHolder>;
-    friend class MainThreadReference;
-    explicit TextureMailboxHolder(
-        const TextureMailbox& mailbox,
-        scoped_ptr<SingleReleaseCallback> release_callback);
-
-    void InternalAddRef();
-    void InternalRelease();
-    void ReturnAndReleaseOnImplThread(
-        uint32 sync_point,
-        bool is_lost,
-        BlockingTaskRunner* main_thread_task_runner);
-
-    // These members are only accessed on the main thread, or on the impl thread
-    // during commit where the main thread is blocked.
-    unsigned internal_references_;
-    TextureMailbox mailbox_;
-    scoped_ptr<SingleReleaseCallback> release_callback_;
-
-    // This lock guards the sync_point_ and is_lost_ fields because they can be
-    // accessed on both the impl and main thread. We do this to ensure that the
-    // values of these fields are well-ordered such that the last call to
-    // ReturnAndReleaseOnImplThread() defines their values.
-    base::Lock arguments_lock_;
-    uint32 sync_point_;
-    bool is_lost_;
-    base::ThreadChecker main_thread_checker_;
-    DISALLOW_COPY_AND_ASSIGN(TextureMailboxHolder);
-  };
-
-  // Used when mailbox names are specified instead of texture IDs.
-  static scoped_refptr<TextureLayer> CreateForMailbox(
-      TextureLayerClient* client);
-
-  // Resets the client, which also resets the texture.
-  void ClearClient();
-
-  // 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);
-  bool flipped() const { return 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);
-
-  // Sets whether the alpha channel is premultiplied or unpremultiplied.
-  // Defaults to true.
-  void SetPremultipliedAlpha(bool premultiplied_alpha);
-
-  // Sets whether the texture should be blended with the background color
-  // at draw time. Defaults to false.
-  void SetBlendBackgroundColor(bool blend);
-
-  // Sets whether this context should rate limit on damage to prevent too many
-  // frames from being queued up before the compositor gets a chance to run.
-  // Requires a non-nil client.  Defaults to false.
-  void SetRateLimitContext(bool rate_limit);
-
-  // Code path for plugins which supply their own mailbox.
-  void SetTextureMailbox(const TextureMailbox& mailbox,
-                         scoped_ptr<SingleReleaseCallback> release_callback);
-
-  // Use this for special cases where the same texture is used to back the
-  // TextureLayer across all frames.
-  // WARNING: DON'T ACTUALLY USE THIS WHAT YOU ARE DOING IS WRONG.
-  // TODO(danakj): Remove this when pepper doesn't need it. crbug.com/350204
-  void SetTextureMailboxWithoutReleaseCallback(const TextureMailbox& mailbox);
-
-  void SetNeedsDisplayRect(const gfx::Rect& dirty_rect) override;
-
-  void SetLayerTreeHost(LayerTreeHost* layer_tree_host) override;
-  bool Update(ResourceUpdateQueue* queue,
-              const OcclusionTracker<Layer>* occlusion) override;
-  void PushPropertiesTo(LayerImpl* layer) override;
-  SimpleEnclosedRegion VisibleContentOpaqueRegion() const override;
-
- protected:
-  explicit TextureLayer(TextureLayerClient* client);
-  ~TextureLayer() override;
-  bool HasDrawableContent() const override;
-
- 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_