Remove parts of //cc we aren't using

cc/resources/filter_display_item.cc

-// Copyright 2014 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/filter_display_item.h"
-
-#include "base/strings/stringprintf.h"
-#include "base/trace_event/trace_event_argument.h"
-#include "cc/output/render_surface_filters.h"
-#include "skia/ext/refptr.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkImageFilter.h"
-#include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/core/SkXfermode.h"
-#include "ui/gfx/skia_util.h"
-
-namespace cc {
-
-FilterDisplayItem::FilterDisplayItem(const FilterOperations& filters,
-                                     gfx::RectF bounds)
-    : filters_(filters), bounds_(bounds) {
-}
-
-FilterDisplayItem::~FilterDisplayItem() {
-}
-
-void FilterDisplayItem::Raster(SkCanvas* canvas,
-                               SkDrawPictureCallback* callback) const {
-  canvas->save();
-  canvas->translate(bounds_.x(), bounds_.y());
-
-  skia::RefPtr<SkImageFilter> image_filter =
-      RenderSurfaceFilters::BuildImageFilter(
-          filters_, gfx::SizeF(bounds_.width(), bounds_.height()));
-  SkRect boundaries;
-  image_filter->computeFastBounds(
-      SkRect::MakeWH(bounds_.width(), bounds_.height()), &boundaries);
-
-  SkPaint paint;
-  paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
-  paint.setImageFilter(image_filter.get());
-  canvas->saveLayer(&boundaries, &paint);
-
-  canvas->translate(-bounds_.x(), -bounds_.y());
-}
-
-bool FilterDisplayItem::IsSuitableForGpuRasterization() const {
-  return true;
-}
-
-int FilterDisplayItem::ApproximateOpCount() const {
-  return 1;
-}
-
-size_t FilterDisplayItem::PictureMemoryUsage() const {
-  return sizeof(skia::RefPtr<SkImageFilter>) + sizeof(gfx::RectF);
-}
-
-void FilterDisplayItem::AsValueInto(
-    base::trace_event::TracedValue* array) const {
-  array->AppendString(base::StringPrintf("FilterDisplayItem bounds: [%s]",
-                                         bounds_.ToString().c_str()));
-}
-
-EndFilterDisplayItem::EndFilterDisplayItem() {
-}
-
-EndFilterDisplayItem::~EndFilterDisplayItem() {
-}
-
-void EndFilterDisplayItem::Raster(SkCanvas* canvas,
-                                  SkDrawPictureCallback* callback) const {
-  canvas->restore();
-  canvas->restore();
-}
-
-bool EndFilterDisplayItem::IsSuitableForGpuRasterization() const {
-  return true;
-}
-
-int EndFilterDisplayItem::ApproximateOpCount() const {
-  return 0;
-}
-
-size_t EndFilterDisplayItem::PictureMemoryUsage() const {
-  return 0;
-}
-
-void EndFilterDisplayItem::AsValueInto(
-    base::trace_event::TracedValue* array) const {
-  array->AppendString("EndFilterDisplayItem");
-}
-
-}  // namespace cc