Add ScopedSurfaceRequestManager

gpu/ipc/common/android/scoped_surface_request_conduit.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_COMMON_ANDROID_SCOPED_SURFACE_REQUEST_CONDUIT_H_
+#define GPU_IPC_COMMON_ANDROID_SCOPED_SURFACE_REQUEST_CONDUIT_H_
+
+#include <string>
+
+#include "gpu/gpu_export.h"
+
+namespace gl {
+class SurfaceTexture;
+}
+
+namespace gpu {
+
+// Allows the forwarding of SurfaceTextures from the GPU or the browser process
+// to fulfill requests registered by the ScopedSurfaceRequestManager.
+//
+// TODO(tguilbert): Change the type of request_token to the unguessable token
+// type, when crbug.com/643857 is completed.
+class GPU_EXPORT ScopedSurfaceRequestConduit {
+ public:
+  static ScopedSurfaceRequestConduit* GetInstance();
+  static void SetInstance(ScopedSurfaceRequestConduit* instance);
+
+  // Sends the surface texture to the ScopedSurfaceRequestManager in the browser
+  // process, to fulfill the request registered under the |request_token| key.
+  virtual void ForwardSurfaceTextureForSurfaceRequest(
+      std::string request_token,
+      gl::SurfaceTexture* surface_texture) = 0;
+
+ protected:
+  virtual ~ScopedSurfaceRequestConduit() {}
+};
+
+}  // namespace gpu
+
+#endif  // GPU_IPC_COMMON_ANDROID_SCOPED_SURFACE_REQUEST_CONDUIT_H_