Remove parts of //cc we aren't using

cc/layers/picture_image_layer.h

Index: cc/layers/picture_image_layer.h
diff --git a/cc/layers/picture_image_layer.h b/cc/layers/picture_image_layer.h
deleted file mode 100644
index 8d40550bd19d1f0293895667ff42d6bb2696aa06..0000000000000000000000000000000000000000
--- a/cc/layers/picture_image_layer.h
+++ /dev/null
@@ -1,49 +0,0 @@
-// 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_PICTURE_IMAGE_LAYER_H_
-#define CC_LAYERS_PICTURE_IMAGE_LAYER_H_
-
-#include "cc/base/cc_export.h"
-#include "cc/layers/content_layer_client.h"
-#include "cc/layers/picture_layer.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/gfx/geometry/size.h"
-
-namespace cc {
-
-class CC_EXPORT PictureImageLayer : public PictureLayer, ContentLayerClient {
- public:
-  static scoped_refptr<PictureImageLayer> Create();
-
-  void SetBitmap(const SkBitmap& image);
-
-  // Layer implementation.
-  scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
-
-  // ContentLayerClient implementation.
-  void PaintContents(
-      SkCanvas* canvas,
-      const gfx::Rect& clip,
-      ContentLayerClient::PaintingControlSetting painting_control) override;
-  scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
-      const gfx::Rect& clip,
-      ContentLayerClient::PaintingControlSetting painting_control) override;
-  bool FillsBoundsCompletely() const override;
-
- protected:
-  bool HasDrawableContent() const override;
-
- private:
-  PictureImageLayer();
-  ~PictureImageLayer() override;
-
-  SkBitmap bitmap_;
-
-  DISALLOW_COPY_AND_ASSIGN(PictureImageLayer);
-};
-
-}  // namespace cc
-
-#endif  // CC_LAYERS_PICTURE_IMAGE_LAYER_H_