Decouple PassThroughImageTransportSurface from GpuCommandBufferStub

gpu/ipc/service/image_transport_surface_delegate.h

Index: gpu/ipc/service/image_transport_surface_delegate.h
diff --git a/gpu/ipc/service/image_transport_surface_delegate.h b/gpu/ipc/service/image_transport_surface_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..014a800bd761b816f9fcd02fd641518de998e311
--- /dev/null
+++ b/gpu/ipc/service/image_transport_surface_delegate.h
@@ -0,0 +1,70 @@
+// 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 "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 {
+
+namespace gles2 {
+class FeatureInfo;
+}
+
+struct SwapBuffersCompleteParams {
+  SwapBuffersCompleteParams();
+  SwapBuffersCompleteParams(SwapBuffersCompleteParams&& other);

[piman, 2016/11/09 22:49:36]

nit: rule-of-3, add a move-assign operator?

[Fady Samuel, 2016/11/09 23:28:10]

Done.

+  ~SwapBuffersCompleteParams();
+
+#if defined(OS_MACOSX)
+  // Mac-specific parameters used to present CALayers hosted in the GPU process.
+  // TODO(ccameron): Remove these parameters once the CALayer tree is hosted in
+  // the browser process.
+  // https://crbug.com/604052
+  // Only one of ca_context_id or io_surface may be non-0.
+  CAContextID ca_context_id;
+  bool fullscreen_low_power_ca_context_valid;
+  CAContextID fullscreen_low_power_ca_context_id;
+  gfx::ScopedRefCountedIOSurfaceMachPort io_surface;
+  gfx::Size pixel_size;
+  float scale_factor;
+  gpu::TextureInUseResponses in_use_responses;
+#endif
+  std::vector<ui::LatencyInfo> latency_info;
+  gfx::SwapResult result;
+};
+
+class ImageTransportSurfaceDelegate {
+ public:
+  // Tells the delete 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_