cc: Remove all impl-side caps from RendererCapabilitiesImpl.

cc/test/pixel_test.h

 // Copyright 2013 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 "base/files/file_util.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/output/software_renderer.h"
 #include "cc/quads/render_pass.h"
 #include "cc/test/pixel_comparator.h"
 #include "cc/trees/layer_tree_settings.h"
@@ skipping 28 matching lines @@
       RenderPass* target,
       const base::FilePath& ref_file,
       const PixelComparator& comparator);
 
   bool RunPixelTestWithReadbackTargetAndArea(RenderPassList* pass_list,
                                              RenderPass* target,
                                              const base::FilePath& ref_file,
                                              const PixelComparator& comparator,
                                              const gfx::Rect* copy_rect);
 
+  ContextProvider* context_provider() const {
+    return output_surface_->context_provider();
+  }
+
   LayerTreeSettings settings_;
   gfx::Size device_viewport_size_;
   bool disable_picture_quad_image_filtering_;
   std::unique_ptr<FakeOutputSurfaceClient> output_surface_client_;
   std::unique_ptr<OutputSurface> output_surface_;
   std::unique_ptr<TestSharedBitmapManager> shared_bitmap_manager_;
   std::unique_ptr<TestGpuMemoryBufferManager> gpu_memory_buffer_manager_;
   std::unique_ptr<BlockingTaskRunner> main_thread_task_runner_;
   std::unique_ptr<ResourceProvider> resource_provider_;
   std::unique_ptr<TextureMailboxDeleter> texture_mailbox_deleter_;
@@ skipping 98 matching lines @@
   ForceExpandedViewport(gfx::Size(50, 50));
   ForceViewportOffset(gfx::Vector2d(10, 20));
 }
 
 typedef RendererPixelTest<GLRenderer> GLRendererPixelTest;
 typedef RendererPixelTest<SoftwareRenderer> SoftwareRendererPixelTest;
 
 }  // namespace cc
 
 #endif  // CC_TEST_PIXEL_TEST_H_