cc: Use a ListContainer for DisplayItemList to reduce allocations.

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() {
 }
 
 FilterDisplayItem::~FilterDisplayItem() {
 }
 
+void FilterDisplayItem::SetNew(const FilterOperations& filters,
+                               const gfx::RectF& bounds) {
+  filters_ = filters;
+  bounds_ = bounds;
+}
+
 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(
@@ skipping 48 matching lines @@
 size_t EndFilterDisplayItem::PictureMemoryUsage() const {
   return 0;
 }
 
 void EndFilterDisplayItem::AsValueInto(
     base::trace_event::TracedValue* array) const {
   array->AppendString("EndFilterDisplayItem");
 }
 
 }  // namespace cc