Add detached mode plumbing

content/gpu/gpu_child_thread.h

 // Copyright (c) 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 CONTENT_GPU_GPU_CHILD_THREAD_H_
 #define CONTENT_GPU_GPU_CHILD_THREAD_H_
 
 #include <stdint.h>
 
 #include <queue>
@@ skipping 79 matching lines @@
   void DidLoseContext(bool offscreen,
                       gpu::error::ContextLostReason reason,
                       const GURL& active_url) override;
   void GpuMemoryUmaStats(const gpu::GPUMemoryUmaStats& params) override;
   void RemoveSubscription(int32_t client_id, unsigned int target) override;
 #if defined(OS_MACOSX)
   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) override;
 #endif
 #if defined(OS_WIN)
   void SendAcceleratedSurfaceCreatedChildWindow(
       gpu::SurfaceHandle parent_window,
       gpu::SurfaceHandle child_window) override;
 #endif
   void StoreShaderToDisk(int32_t client_id,
@@ skipping 70 matching lines @@
 
   // Bindings to the mojom::ProcessControl impl.
   mojo::BindingSet<mojom::ProcessControl> process_control_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_GPU_GPU_CHILD_THREAD_H_