Remove parts of //cc we aren't using

cc/resources/clip_path_display_item.cc

-// 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.
-
-#include "cc/resources/clip_path_display_item.h"
-
-#include "base/strings/stringprintf.h"
-#include "base/trace_event/trace_event_argument.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-
-namespace cc {
-
-ClipPathDisplayItem::ClipPathDisplayItem(const SkPath& clip_path,
-                                         SkRegion::Op clip_op,
-                                         bool antialias)
-    : clip_path_(clip_path), clip_op_(clip_op), antialias_(antialias) {
-}
-
-ClipPathDisplayItem::~ClipPathDisplayItem() {
-}
-
-void ClipPathDisplayItem::Raster(SkCanvas* canvas,
-                                 SkDrawPictureCallback* callback) const {
-  canvas->save();
-  canvas->clipPath(clip_path_, clip_op_, antialias_);
-}
-
-bool ClipPathDisplayItem::IsSuitableForGpuRasterization() const {
-  return true;
-}
-
-int ClipPathDisplayItem::ApproximateOpCount() const {
-  return 1;
-}
-
-size_t ClipPathDisplayItem::PictureMemoryUsage() const {
-  size_t total_size = sizeof(SkPath) + sizeof(SkRegion::Op) + sizeof(bool);
-  return total_size;
-}
-
-void ClipPathDisplayItem::AsValueInto(
-    base::trace_event::TracedValue* array) const {
-  array->AppendString(base::StringPrintf("ClipPathDisplayItem length: %d",
-                                         clip_path_.countPoints()));
-}
-
-EndClipPathDisplayItem::EndClipPathDisplayItem() {
-}
-
-EndClipPathDisplayItem::~EndClipPathDisplayItem() {
-}
-
-void EndClipPathDisplayItem::Raster(SkCanvas* canvas,
-                                    SkDrawPictureCallback* callback) const {
-  canvas->restore();
-}
-
-bool EndClipPathDisplayItem::IsSuitableForGpuRasterization() const {
-  return true;
-}
-
-int EndClipPathDisplayItem::ApproximateOpCount() const {
-  return 0;
-}
-
-size_t EndClipPathDisplayItem::PictureMemoryUsage() const {
-  return 0;
-}
-
-void EndClipPathDisplayItem::AsValueInto(
-    base::trace_event::TracedValue* array) const {
-  array->AppendString("EndClipPathDisplayItem");
-}
-
-}  // namespace cc