Use SwapBuffersWithBounds on Chromecast

content/browser/compositor/gpu_browser_compositor_output_surface.cc

 // Copyright 2014 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 "content/browser/compositor/gpu_browser_compositor_output_surface.h"
 
 #include <utility>
 
 #include "build/build_config.h"
 #include "cc/output/output_surface_client.h"
@@ skipping 98 matching lines @@
     if (frame.sub_buffer_rect) {
       reflector_texture_->CopyTextureSubImage(*frame.sub_buffer_rect);
       reflector_->OnSourcePostSubBuffer(*frame.sub_buffer_rect, surface_size);
     } else {
       reflector_texture_->CopyTextureFullImage(surface_size);
       reflector_->OnSourceSwapBuffers(surface_size);
     }
   }
 
   if (frame.sub_buffer_rect) {
+    DCHECK(frame.content_bounds.empty());
     context_provider_->ContextSupport()->PartialSwapBuffers(
         *frame.sub_buffer_rect);
+  } else if (!frame.content_bounds.empty()) {
+    context_provider_->ContextSupport()->SwapWithBounds(frame.content_bounds);
   } else {
     context_provider_->ContextSupport()->Swap();
   }
 }
 
 uint32_t GpuBrowserCompositorOutputSurface::GetFramebufferCopyTextureFormat() {
   auto* gl = static_cast<ui::ContextProviderCommandBuffer*>(context_provider());
   return gl->GetCopyTextureInternalFormat();
 }
 
@@ skipping 18 matching lines @@
 GpuBrowserCompositorOutputSurface::GetCommandBufferProxy() {
   ui::ContextProviderCommandBuffer* provider_command_buffer =
       static_cast<ui::ContextProviderCommandBuffer*>(context_provider_.get());
   gpu::CommandBufferProxyImpl* command_buffer_proxy =
       provider_command_buffer->GetCommandBufferProxy();
   DCHECK(command_buffer_proxy);
   return command_buffer_proxy;
 }
 
 }  // namespace content