cc: GPU rasterize to an auxiliary surface when using MSAA renderbuffers

cc/resources/resource_provider.h

 // 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.
 
 #ifndef CC_RESOURCES_RESOURCE_PROVIDER_H_
 #define CC_RESOURCES_RESOURCE_PROVIDER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 352 matching lines @@
 
     void InitSkSurface(GrContext* gr_context,
                        bool use_distance_field_text,
                        bool can_use_lcd_text,
                        int msaa_sample_count);
     void ReleaseSkSurface();
 
     SkSurface* sk_surface() { return sk_surface_.get(); }
 
     gfx::Size GetResourceSize() const { return resource_->size; }
+    ResourceFormat GetResourceFormat() const { return resource_->format; }
 
     void UpdateResourceSyncToken(const gpu::SyncToken& sync_token) {
       set_sync_token_ = true;
       sync_token_ = sync_token;
     }
 
    private:
     ResourceProvider* resource_provider_;
     ResourceProvider::Resource* resource_;
     base::ThreadChecker thread_checker_;
@@ skipping 296 matching lines @@
   const size_t id_allocation_chunk_size_;
   std::unique_ptr<IdAllocator> texture_id_allocator_;
   std::unique_ptr<IdAllocator> buffer_id_allocator_;
 
   bool use_sync_query_;
   std::vector<unsigned> use_image_texture_targets_;
 
   // A process-unique ID used for disambiguating memory dumps from different
   // resource providers.
   int tracing_id_;
-
+  friend class GpuRasterizer;
   DISALLOW_COPY_AND_ASSIGN(ResourceProvider);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_PROVIDER_H_