Remove parts of //cc we aren't using

cc/layers/delegated_frame_provider.h

-// Copyright 2013 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_DELEGATED_FRAME_PROVIDER_H_
-#define CC_LAYERS_DELEGATED_FRAME_PROVIDER_H_
-
-#include <vector>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "cc/base/cc_export.h"
-#include "cc/resources/return_callback.h"
-#include "cc/resources/returned_resource.h"
-#include "ui/gfx/geometry/rect_f.h"
-#include "ui/gfx/geometry/size.h"
-
-namespace cc {
-class DelegatedFrameData;
-class DelegatedFrameResourceCollection;
-class DelegatedRendererLayer;
-
-// Only one observing layer has ownership of the DelegatedFrameProvider. Only
-// the active observer should call GetFrameDataAndRefResources(). All frames
-// provided by a single DelegatedFrameProvider must have the same size. A new
-// provider must be used for frames of a different size.
-class CC_EXPORT DelegatedFrameProvider
-    : public base::RefCounted<DelegatedFrameProvider> {
- public:
-  explicit DelegatedFrameProvider(
-      const scoped_refptr<DelegatedFrameResourceCollection>&
-          resource_collection,
-      scoped_ptr<DelegatedFrameData> frame);
-
-  void AddObserver(DelegatedRendererLayer* layer);
-  void RemoveObserver(DelegatedRendererLayer* layer);
-
-  void SetFrameData(scoped_ptr<DelegatedFrameData> frame);
-
-  // The DelegatedFrameData returned here must be displayed in order to not
-  // lose track of damage.
-  DelegatedFrameData* GetFrameDataAndRefResources(
-      DelegatedRendererLayer* observer,
-      gfx::RectF* damage);
-
-  ReturnCallback GetReturnResourcesCallbackForImplThread();
-  void UnrefResourcesOnMainThread(const ReturnedResourceArray& unused);
-
-  gfx::Size frame_size() const { return frame_size_; }
-
- private:
-  friend class base::RefCounted<DelegatedFrameProvider>;
-  ~DelegatedFrameProvider();
-
-  scoped_refptr<DelegatedFrameResourceCollection> resource_collection_;
-
-  scoped_ptr<DelegatedFrameData> frame_;
-
-  struct Observer {
-    DelegatedRendererLayer* layer;
-    gfx::RectF damage;
-
-    Observer(DelegatedRendererLayer* layer, const gfx::RectF& damage)
-        : layer(layer), damage(damage) {}
-  };
-  std::vector<Observer> observers_;
-
-  gfx::Size frame_size_;
-
-  DISALLOW_COPY_AND_ASSIGN(DelegatedFrameProvider);
-};
-
-}  // namespace cc
-
-#endif  // CC_LAYERS_DELEGATED_FRAME_PROVIDER_H_