Remove parts of //cc we aren't using

cc/test/layer_tree_pixel_test.h

Index: cc/test/layer_tree_pixel_test.h
diff --git a/cc/test/layer_tree_pixel_test.h b/cc/test/layer_tree_pixel_test.h
deleted file mode 100644
index da030d1c8917ef2c0699c32d7064f14164132cbb..0000000000000000000000000000000000000000
--- a/cc/test/layer_tree_pixel_test.h
+++ /dev/null
@@ -1,118 +0,0 @@
-// 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_TEST_LAYER_TREE_PIXEL_TEST_H_
-#define CC_TEST_LAYER_TREE_PIXEL_TEST_H_
-
-#include <vector>
-
-#include "base/files/file_path.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "cc/resources/single_release_callback.h"
-#include "cc/test/layer_tree_test.h"
-#include "ui/gl/gl_implementation.h"
-
-class SkBitmap;
-
-namespace gpu {
-class GLInProcessContext;
-}
-
-namespace cc {
-class CopyOutputRequest;
-class CopyOutputResult;
-class LayerTreeHost;
-class PixelComparator;
-class SolidColorLayer;
-class TextureLayer;
-class TextureMailbox;
-
-class LayerTreePixelTest : public LayerTreeTest {
- public:
-  enum PixelTestType {
-    PIXEL_TEST_GL,
-    PIXEL_TEST_SOFTWARE,
-  };
-
- protected:
-  LayerTreePixelTest();
-  ~LayerTreePixelTest() override;
-
-  scoped_ptr<OutputSurface> CreateOutputSurface() override;
-  void WillActivateTreeOnThread(LayerTreeHostImpl* impl) override;
-
-  virtual scoped_ptr<CopyOutputRequest> CreateCopyOutputRequest();
-
-  void ReadbackResult(scoped_ptr<CopyOutputResult> result);
-
-  void BeginTest() override;
-  void SetupTree() override;
-  void AfterTest() override;
-  void EndTest() override;
-
-  void TryEndTest();
-
-  scoped_refptr<SolidColorLayer> CreateSolidColorLayer(const gfx::Rect& rect,
-                                                       SkColor color);
-  scoped_refptr<SolidColorLayer> CreateSolidColorLayerWithBorder(
-      const gfx::Rect& rect,
-      SkColor color,
-      int border_width,
-      SkColor border_color);
-  scoped_refptr<TextureLayer> CreateTextureLayer(const gfx::Rect& rect,
-                                                 const SkBitmap& bitmap);
-
-  void RunPixelTest(PixelTestType type,
-                    scoped_refptr<Layer> content_root,
-                    base::FilePath file_name);
-
-  void RunSingleThreadedPixelTest(PixelTestType test_type,
-                                  scoped_refptr<Layer> content_root,
-                                  base::FilePath file_name);
-
-  void RunPixelTestWithReadbackTarget(PixelTestType type,
-                                      scoped_refptr<Layer> content_root,
-                                      Layer* target,
-                                      base::FilePath file_name);
-
-  scoped_ptr<SkBitmap> CopyTextureMailboxToBitmap(
-      const gfx::Size& size,
-      const TextureMailbox& texture_mailbox);
-
-  void CopyBitmapToTextureMailboxAsTexture(
-      const SkBitmap& bitmap,
-      TextureMailbox* texture_mailbox,
-      scoped_ptr<SingleReleaseCallback>* release_callback);
-
-  void ReleaseTextureMailbox(scoped_ptr<gpu::GLInProcessContext> context,
-                             uint32 texture,
-                             uint32 sync_point,
-                             bool lost_resource);
-
-  void set_enlarge_texture_amount(const gfx::Vector2d& enlarge_texture_amount) {
-    enlarge_texture_amount_ = enlarge_texture_amount;
-  }
-
-  // Common CSS colors defined for tests to use.
-  static const SkColor kCSSOrange = 0xffffa500;
-  static const SkColor kCSSBrown = 0xffa52a2a;
-  static const SkColor kCSSGreen = 0xff008000;
-
-  gfx::DisableNullDrawGLBindings enable_pixel_output_;
-  scoped_ptr<PixelComparator> pixel_comparator_;
-  PixelTestType test_type_;
-  scoped_refptr<Layer> content_root_;
-  Layer* readback_target_;
-  base::FilePath ref_file_;
-  scoped_ptr<SkBitmap> result_bitmap_;
-  std::vector<scoped_refptr<TextureLayer>> texture_layers_;
-  int pending_texture_mailbox_callbacks_;
-  bool impl_side_painting_;
-  gfx::Vector2d enlarge_texture_amount_;
-};
-
-}  // namespace cc
-
-#endif  // CC_TEST_LAYER_TREE_PIXEL_TEST_H_