Mus: ImageTransportSurface should not depend on GpuChannelManager

gpu/ipc/service/image_transport_surface_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 GPU_IPC_SERVICE_IMAGE_TRANSPORT_SURFACE_DELEGATE_H_
 #define GPU_IPC_SERVICE_IMAGE_TRANSPORT_SURFACE_DELEGATE_H_
 
 #include "base/callback.h"
 #include "gpu/command_buffer/common/texture_in_use_response.h"
 #include "gpu/gpu_export.h"
+#include "gpu/ipc/common/surface_handle.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/swap_result.h"
 
 #if defined(OS_MACOSX)
 #include "ui/base/cocoa/remote_layer_api.h"
 #include "ui/gfx/mac/io_surface.h"
 #endif
 
 namespace gpu {
 
@@ skipping 21 matching lines @@
   gfx::Size pixel_size;
   float scale_factor;
   gpu::TextureInUseResponses in_use_responses;
 #endif
   std::vector<ui::LatencyInfo> latency_info;
   gfx::SwapResult result;
 };
 
 class GPU_EXPORT ImageTransportSurfaceDelegate {
  public:
-  // Tells the delete that SwapBuffers returned and passes latency info.
+#if defined(OS_WIN)
+  // Tells the delegate that a child window was created with the provided
+  // SurfaceHandle.
+  virtual void DidCreateAcceleratedSurfaceChildWindow(
+      SurfaceHandle parent_window,
+      SurfaceHandle child_window) = 0;
+#endif
+
+  // Tells the delegate that SwapBuffers returned and passes latency info.
   virtual void DidSwapBuffersComplete(SwapBuffersCompleteParams params) = 0;
 
   // Returns the features available for the ContextGroup.
   virtual const gles2::FeatureInfo* GetFeatureInfo() const = 0;
 
   using LatencyInfoCallback =
       base::Callback<void(const std::vector<ui::LatencyInfo>&)>;
   // |callback| is called when the delegate has updated LatencyInfo available.
   virtual void SetLatencyInfoCallback(const LatencyInfoCallback& callback) = 0;
 
   // Informs the delegate about updated vsync parameters.
   virtual void UpdateVSyncParameters(base::TimeTicks timebase,
                                      base::TimeDelta interval) = 0;
 
  protected:
   virtual ~ImageTransportSurfaceDelegate() {}
 };
 
 }  // namespace gpu
 
 #endif  // GPU_IPC_SERVICE_IMAGE_TRANSPORT_SURFACE_DELEGATE_H_