gpu: Allow waiting on sync tokens without sync token client.

gpu/ipc/service/gpu_command_buffer_stub.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_SERVICE_GPU_COMMAND_BUFFER_STUB_H_
 #define GPU_IPC_SERVICE_GPU_COMMAND_BUFFER_STUB_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 149 matching lines @@
                                  int32_t end,
                                  IPC::Message* reply_message);
   void OnAsyncFlush(int32_t put_offset,
                     uint32_t flush_count,
                     const std::vector<ui::LatencyInfo>& latency_info);
   void OnRegisterTransferBuffer(int32_t id,
                                 base::SharedMemoryHandle transfer_buffer,
                                 uint32_t size);
   void OnDestroyTransferBuffer(int32_t id);
   void OnGetTransferBuffer(int32_t id, IPC::Message* reply_message);
+  bool OnWaitSyncToken(const SyncToken& sync_token);
 
   void OnEnsureBackbuffer();
 
-  void OnWaitSyncToken(const SyncToken& sync_token);
   void OnSignalSyncToken(const SyncToken& sync_token, uint32_t id);
   void OnSignalAck(uint32_t id);
   void OnSignalQuery(uint32_t query, uint32_t id);
 
   void OnFenceSyncRelease(uint64_t release);
-  bool OnWaitFenceSync(CommandBufferNamespace namespace_id,
-                       CommandBufferId command_buffer_id,
-                       uint64_t release);
-  void OnWaitFenceSyncCompleted(CommandBufferNamespace namespace_id,
-                                CommandBufferId command_buffer_id,
-                                uint64_t release);
+  void OnWaitSyncTokenCompleted(const SyncToken& sync_token);
 
   void OnDescheduleUntilFinished();
   void OnRescheduleAfterFinished();
 
   void OnCreateImage(const GpuCommandBufferMsg_CreateImage_Params& params);
   void OnDestroyImage(int32_t id);
   void OnCreateStreamTexture(uint32_t texture_id,
                              int32_t stream_id,
                              bool* succeeded);
   void OnCommandProcessed();
   void OnParseError();
 
   void ReportState();
 
   // Wrapper for CommandExecutor::PutChanged that sets the crash report URL.
   void PutChanged();
 
   // Poll the command buffer to execute work.
   void PollWork();
   void PerformWork();
 
   // Schedule processing of delayed work. This updates the time at which
   // delayed work should be processed. |process_delayed_work_time_| is
   // updated to current time + delay. Call this after processing some amount
   // of delayed work.
   void ScheduleDelayedWork(base::TimeDelta delay);
 
   bool CheckContextLost();
   void CheckCompleteWaits();
-  void PullTextureUpdates(CommandBufferNamespace namespace_id,
-                          CommandBufferId command_buffer_id,
-                          uint32_t release);
 
   // The lifetime of objects of this class is managed by a GpuChannel. The
   // GpuChannels destroy all the GpuCommandBufferStubs that they own when they
   // are destroyed. So a raw pointer is safe.
   GpuChannel* const channel_;
 
   // The group of contexts that share namespaces with this context.
   scoped_refptr<gles2::ContextGroup> context_group_;
 
   bool initialized_;
@@ skipping 26 matching lines @@
 
   std::unique_ptr<WaitForCommandState> wait_for_token_;
   std::unique_ptr<WaitForCommandState> wait_for_get_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuCommandBufferStub);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_IPC_SERVICE_GPU_COMMAND_BUFFER_STUB_H_