Add detached mode plumbing

content/common/gpu/gpu_channel_manager_delegate.h

 // Copyright 2016 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 CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_DELEGATE_H_
 #define CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_DELEGATE_H_
 
 #include "gpu/command_buffer/common/constants.h"
 #include "gpu/ipc/common/surface_handle.h"
 
@@ skipping 50 matching lines @@
   virtual void StoreShaderToDisk(int32_t client_id,
                                  const std::string& key,
                                  const std::string& shader) = 0;
 
 #if defined(OS_MACOSX)
   // Tells the delegate that an accelerated surface has swapped.
   virtual void SendAcceleratedSurfaceBuffersSwapped(
       int32_t surface_id,
       CAContextID ca_context_id,
       const gfx::ScopedRefCountedIOSurfaceMachPort& io_surface,
+      bool use_detached,
+      CAContextID detached_ca_context_id,
       const gfx::Size& size,
       float scale_factor,
       std::vector<ui::LatencyInfo> latency_info) = 0;
 #endif
 
 #if defined(OS_WIN)
   virtual void SendAcceleratedSurfaceCreatedChildWindow(
       gpu::SurfaceHandle parent_window,
       gpu::SurfaceHandle child_window) = 0;
 #endif
 
   // Sets the currently active URL.  Use GURL() to clear the URL.
   virtual void SetActiveURL(const GURL& url) = 0;
 
  protected:
   virtual ~GpuChannelManagerDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_DELEGATE_H_