List sync points to wait on in AsyncFlush message

gpu/command_buffer/client/cmd_buffer_helper.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.
 
 // This file contains the command buffer helper class.
 
 #ifndef GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_
 #define GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_
 
 #include <string.h>
@@ skipping 272 matching lines @@
 
   bool usable () const {
     return usable_;
   }
 
   void ClearUsable() {
     usable_ = false;
     CalcImmediateEntries(0);
   }
 
+  void WillWaitOnSyncPoint(int sync_point) {
+    sync_points_to_wait_on_.push_back(sync_point);
+  }
+
  private:
   // Returns the number of available entries (they may not be contiguous).
   int32 AvailableEntries() {
     return (get_offset() - put_ - 1 + total_entry_count_) % total_entry_count_;
   }
 
   void CalcImmediateEntries(int waiting_count);
   bool AllocateRingBuffer();
   void FreeResources();
 
@@ skipping 10 matching lines @@
   int32 ring_buffer_id_;
   int32 ring_buffer_size_;
   scoped_refptr<gpu::Buffer> ring_buffer_;
   CommandBufferEntry* entries_;
   int32 total_entry_count_;  // the total number of entries
   int32 immediate_entry_count_;
   int32 token_;
   int32 put_;
   int32 last_put_sent_;
 
+  std::vector<uint32> sync_points_to_wait_on_;
+
 #if defined(CMD_HELPER_PERIODIC_FLUSH_CHECK)
   int commands_issued_;
 #endif
 
   bool usable_;
   bool context_lost_;
   bool flush_automatically_;
 
   base::TimeTicks last_flush_time_;
 
   // Incremented every time the helper flushes the command buffer.
   // Can be used to track when prior commands have been flushed.
   uint32 flush_generation_;
 
   friend class CommandBufferHelperTest;
   DISALLOW_COPY_AND_ASSIGN(CommandBufferHelper);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_CMD_BUFFER_HELPER_H_