Add support for converting cc::FilterOperations into an SkImageFilter

cc/test/render_pass_test_utils.cc

 // Copyright 2012 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/test/render_pass_test_utils.h"
 
 #include "cc/layers/append_quads_data.h"
 #include "cc/layers/quad_sink.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/shared_quad_state.h"
@@ skipping 70 matching lines @@
                            &to_pass->shared_quad_state_list);
   AppendQuadsData data(to_pass->id);
   gfx::Rect output_rect = contributing_pass->output_rect;
   SharedQuadState* shared_state =
       quad_sink.UseSharedQuadState(SharedQuadState::Create());
   shared_state->SetAll(
       gfx::Transform(), output_rect.size(), output_rect, output_rect, false, 1);
   scoped_ptr<RenderPassDrawQuad> quad = RenderPassDrawQuad::Create();
   quad->SetNew(shared_state, output_rect, contributing_pass->id, false, 0,
                output_rect, gfx::RectF(), FilterOperations(),
-               skia::RefPtr<SkImageFilter>(), FilterOperations());
+               FilterOperations());
   quad_sink.Append(quad.PassAs<DrawQuad>(), &data);
 }
 
 void AddRenderPassQuad(TestRenderPass* to_pass,
                        TestRenderPass* contributing_pass,
                        ResourceProvider::ResourceId mask_resource_id,
-                       skia::RefPtr<SkImageFilter> filter,
+                       const FilterOperations& filters,
                        gfx::Transform transform) {
   MockQuadCuller quad_sink(&to_pass->quad_list,
                            &to_pass->shared_quad_state_list);
   AppendQuadsData data(to_pass->id);
   gfx::Rect output_rect = contributing_pass->output_rect;
   SharedQuadState* shared_state =
       quad_sink.UseSharedQuadState(SharedQuadState::Create());
   shared_state->SetAll(
         transform, output_rect.size(), output_rect, output_rect, false, 1);
   scoped_ptr<RenderPassDrawQuad> quad = RenderPassDrawQuad::Create();
   quad->SetNew(shared_state, output_rect, contributing_pass->id, false,
-               mask_resource_id, output_rect, gfx::RectF(),
-               FilterOperations(),
-               filter, FilterOperations());
+               mask_resource_id, output_rect, gfx::RectF(), filters,
+               FilterOperations());
   quad_sink.Append(quad.PassAs<DrawQuad>(), &data);
 }
 
 }  // namespace cc