exo: Implement zcr_linux_explicit_synchronization_v1

components/exo/buffer.h

 // Copyright 2015 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 COMPONENTS_EXO_BUFFER_H_
 #define COMPONENTS_EXO_BUFFER_H_
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace base {
 namespace trace_event {
 class TracedValue;
 }
 }
 
 namespace cc {
 class SingleReleaseCallback;
 class TextureMailbox;
 }
 
 namespace gfx {
+class GpuFence;
 class GpuMemoryBuffer;
 }
 
 namespace gpu {
 struct SyncToken;
 }
 
 namespace exo {
 
 // This class provides the content for a Surface. The mechanism by which a
@@ skipping 15 matching lines @@
   void set_release_callback(const base::Closure& release_callback) {
     release_callback_ = release_callback;
   }
 
   // This function can be used to acquire a texture mailbox for the contents of
   // buffer. Returns a release callback on success. The release callback should
   // be called before a new texture mailbox can be acquired unless
   // |non_client_usage| is true.
   std::unique_ptr<cc::SingleReleaseCallback> ProduceTextureMailbox(
       cc::TextureMailbox* mailbox,
+      gfx::GpuFence* fence,
       bool secure_output_only,
       bool client_usage);
 
   // This should be called when the buffer is attached to a Surface.
   void OnAttach();
 
   // This should be called when the buffer is detached from a surface.
   void OnDetach();
 
   // Returns the size of the buffer.
@@ skipping 54 matching lines @@
 
   // The client release callback.
   base::Closure release_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(Buffer);
 };
 
 }  // namespace exo
 
 #endif  // COMPONENTS_EXO_BUFFER_H_