Add support for converting cc::FilterOperations into an SkImageFilter

cc/layers/layer_impl.cc

 // Copyright 2011 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/layers/layer_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "base/strings/stringprintf.h"
 #include "cc/animation/animation_registrar.h"
 #include "cc/animation/scrollbar_animation_controller.h"
@@ skipping 482 matching lines @@
   layer->SetContentsScale(contents_scale_x(), contents_scale_y());
   layer->SetDebugName(debug_name_);
   layer->SetCompositingReasons(compositing_reasons_);
   layer->SetDoubleSided(double_sided_);
   layer->SetDrawCheckerboardForMissingTiles(
       draw_checkerboard_for_missing_tiles_);
   layer->SetForceRenderSurface(force_render_surface_);
   layer->SetDrawsContent(DrawsContent());
   layer->SetHideLayerAndSubtree(hide_layer_and_subtree_);
   layer->SetFilters(filters());
-  layer->SetFilter(filter());
   layer->SetBackgroundFilters(background_filters());
   layer->SetMasksToBounds(masks_to_bounds_);
   layer->SetShouldScrollOnMainThread(should_scroll_on_main_thread_);
   layer->SetHaveWheelEventHandlers(have_wheel_event_handlers_);
   layer->SetNonFastScrollableRegion(non_fast_scrollable_region_);
   layer->SetTouchEventHandlerRegion(touch_event_handler_region_);
   layer->SetContentsOpaque(contents_opaque_);
   layer->SetOpacity(opacity_);
   layer->SetPosition(position_);
   layer->SetIsContainerForFixedPositionLayers(
@@ skipping 297 matching lines @@
     if (SkColorGetA(color) != 255)
       color = SkColorSetA(color, 255);
   }
   return color;
 }
 
 void LayerImpl::SetFilters(const FilterOperations& filters) {
   if (filters_ == filters)
     return;
 
-  DCHECK(!filter_);
   filters_ = filters;
   NoteLayerPropertyChangedForSubtree();
 }
 
 void LayerImpl::SetBackgroundFilters(
     const FilterOperations& filters) {
   if (background_filters_ == filters)
     return;
 
   background_filters_ = filters;
   NoteLayerPropertyChanged();
 }
 
-void LayerImpl::SetFilter(const skia::RefPtr<SkImageFilter>& filter) {
-  if (filter_.get() == filter.get())
-    return;
-
-  DCHECK(filters_.IsEmpty());
-  filter_ = filter;
-  NoteLayerPropertyChangedForSubtree();
-}
-
 void LayerImpl::SetMasksToBounds(bool masks_to_bounds) {
   if (masks_to_bounds_ == masks_to_bounds)
     return;
 
   masks_to_bounds_ = masks_to_bounds;
   NoteLayerPropertyChangedForSubtree();
 }
 
 void LayerImpl::SetContentsOpaque(bool opaque) {
   if (contents_opaque_ == opaque)
@@ skipping 465 matching lines @@
 
 size_t LayerImpl::GPUMemoryUsageInBytes() const { return 0; }
 
 scoped_ptr<base::Value> LayerImpl::AsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   AsValueInto(state.get());
   return state.PassAs<base::Value>();
 }
 
 }  // namespace cc