Remove parts of //cc we aren't using

cc/resources/float_clip_display_item.h

Index: cc/resources/float_clip_display_item.h
diff --git a/cc/resources/float_clip_display_item.h b/cc/resources/float_clip_display_item.h
deleted file mode 100644
index af88c50a20ace409d886bbea5db7a8cea9e3b3dc..0000000000000000000000000000000000000000
--- a/cc/resources/float_clip_display_item.h
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2015 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_RESOURCES_FLOAT_CLIP_DISPLAY_ITEM_H_
-#define CC_RESOURCES_FLOAT_CLIP_DISPLAY_ITEM_H_
-
-#include <vector>
-
-#include "base/memory/scoped_ptr.h"
-#include "cc/base/cc_export.h"
-#include "cc/resources/display_item.h"
-#include "ui/gfx/geometry/rect_f.h"
-
-class SkCanvas;
-class SkDrawPictureCallback;
-
-namespace cc {
-
-class CC_EXPORT FloatClipDisplayItem : public DisplayItem {
- public:
-  ~FloatClipDisplayItem() override;
-
-  static scoped_ptr<FloatClipDisplayItem> Create(gfx::RectF clip_rect) {
-    return make_scoped_ptr(new FloatClipDisplayItem(clip_rect));
-  }
-
-  void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
-
-  bool IsSuitableForGpuRasterization() const override;
-  int ApproximateOpCount() const override;
-  size_t PictureMemoryUsage() const override;
-  void AsValueInto(base::trace_event::TracedValue* array) const override;
-
- protected:
-  explicit FloatClipDisplayItem(gfx::RectF clip_rect);
-
- private:
-  gfx::RectF clip_rect_;
-};
-
-class CC_EXPORT EndFloatClipDisplayItem : public DisplayItem {
- public:
-  ~EndFloatClipDisplayItem() override;
-
-  static scoped_ptr<EndFloatClipDisplayItem> Create() {
-    return make_scoped_ptr(new EndFloatClipDisplayItem());
-  }
-
-  void Raster(SkCanvas* canvas, SkDrawPictureCallback* callback) const override;
-
-  bool IsSuitableForGpuRasterization() const override;
-  int ApproximateOpCount() const override;
-  size_t PictureMemoryUsage() const override;
-  void AsValueInto(base::trace_event::TracedValue* array) const override;
-
- protected:
-  EndFloatClipDisplayItem();
-};
-
-}  // namespace cc
-
-#endif  // CC_RESOURCES_FLOAT_CLIP_DISPLAY_ITEM_H_