Mus: Install SwapBuffersCompleted/VSync callbacks to DirectOutputSurface(Ozone)

gpu/ipc/gl_in_process_context.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 GPU_IPC_GL_IN_PROCESS_CONTEXT_H_
 #define GPU_IPC_GL_IN_PROCESS_CONTEXT_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 41 matching lines @@
       scoped_refptr<gl::GLSurface> surface,
       bool is_offscreen,
       SurfaceHandle window,
       GLInProcessContext* share_context,
       const gpu::gles2::ContextCreationAttribHelper& attribs,
       const SharedMemoryLimits& memory_limits,
       GpuMemoryBufferManager* gpu_memory_buffer_manager,
       ImageFactory* image_factory,
       scoped_refptr<base::SingleThreadTaskRunner> task_runner);
 
+  virtual gpu::Capabilities GetCapabilities() = 0;
+
   // Allows direct access to the GLES2 implementation so a GLInProcessContext
   // can be used without making it current.
   virtual gles2::GLES2Implementation* GetImplementation() = 0;
 
   virtual void SetLock(base::Lock* lock) = 0;
 
   virtual void SetSwapBuffersCompletionCallback(
       const gpu::InProcessCommandBuffer::SwapBuffersCompletionCallback&
           callback) = 0;
 
   virtual void SetUpdateVSyncParametersCallback(
       const gpu::InProcessCommandBuffer::UpdateVSyncParametersCallback&
           callback) = 0;
 };
 
 }  // namespace gpu
 
 #endif  // GPU_IPC_GL_IN_PROCESS_CONTEXT_H_