cc, gpu: Use RGBA when using msaa on systems that don't support BGRA

cc/raster/one_copy_tile_task_worker_pool.cc

Index: cc/raster/one_copy_tile_task_worker_pool.cc
diff --git a/cc/raster/one_copy_tile_task_worker_pool.cc b/cc/raster/one_copy_tile_task_worker_pool.cc
index e3d1df5e0e1d2a782a6a61ba06bdffec29266589..78e6b106ce94308185987f79f3d47d8bd282c630 100644
--- a/cc/raster/one_copy_tile_task_worker_pool.cc
+++ b/cc/raster/one_copy_tile_task_worker_pool.cc
@@ -13,6 +13,7 @@
 #include "cc/base/math_util.h"
 #include "cc/debug/traced_value.h"
 #include "cc/raster/raster_buffer.h"
+#include "cc/resources/platform_color.h"
 #include "cc/resources/resource_pool.h"
 #include "cc/resources/scoped_resource.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
@@ -295,10 +296,14 @@ void OneCopyTileTaskWorkerPool::CheckForCompletedTasks() {
   completed_tasks_.clear();
 }
 
-ResourceFormat OneCopyTileTaskWorkerPool::GetResourceFormat() {
+ResourceFormat OneCopyTileTaskWorkerPool::GetResourceFormat() const {
   return resource_provider_->best_texture_format();
 }
 
+bool OneCopyTileTaskWorkerPool::GetResourceRequiresSwizzle() const {
+  return !PlatformColor::SameComponentOrder(GetResourceFormat());
+}
+
 scoped_ptr<RasterBuffer> OneCopyTileTaskWorkerPool::AcquireBufferForRaster(
     const Resource* resource,
     uint64_t resource_content_id,