Remove parts of //cc we aren't using

cc/resources/float_clip_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/float_clip_display_item.h"
-
-#include "base/strings/stringprintf.h"
-#include "base/trace_event/trace_event_argument.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "ui/gfx/skia_util.h"
-
-namespace cc {
-
-FloatClipDisplayItem::FloatClipDisplayItem(gfx::RectF clip_rect)
-    : clip_rect_(clip_rect) {
-}
-
-FloatClipDisplayItem::~FloatClipDisplayItem() {
-}
-
-void FloatClipDisplayItem::Raster(SkCanvas* canvas,
-                                  SkDrawPictureCallback* callback) const {
-  canvas->save();
-  canvas->clipRect(gfx::RectFToSkRect(clip_rect_));
-}
-
-bool FloatClipDisplayItem::IsSuitableForGpuRasterization() const {
-  return true;
-}
-
-int FloatClipDisplayItem::ApproximateOpCount() const {
-  return 1;
-}
-
-size_t FloatClipDisplayItem::PictureMemoryUsage() const {
-  return sizeof(gfx::RectF);
-}
-
-void FloatClipDisplayItem::AsValueInto(
-    base::trace_event::TracedValue* array) const {
-  array->AppendString(base::StringPrintf("FloatClipDisplayItem rect: [%s]",
-                                         clip_rect_.ToString().c_str()));
-}
-
-EndFloatClipDisplayItem::EndFloatClipDisplayItem() {
-}
-
-EndFloatClipDisplayItem::~EndFloatClipDisplayItem() {
-}
-
-void EndFloatClipDisplayItem::Raster(SkCanvas* canvas,
-                                     SkDrawPictureCallback* callback) const {
-  canvas->restore();
-}
-
-bool EndFloatClipDisplayItem::IsSuitableForGpuRasterization() const {
-  return true;
-}
-
-int EndFloatClipDisplayItem::ApproximateOpCount() const {
-  return 0;
-}
-
-size_t EndFloatClipDisplayItem::PictureMemoryUsage() const {
-  return 0;
-}
-
-void EndFloatClipDisplayItem::AsValueInto(
-    base::trace_event::TracedValue* array) const {
-  array->AppendString("EndFloatClipDisplayItem");
-}
-
-}  // namespace cc