Implemented new fence syncs which replaces the old sync points.

gpu/command_buffer/common/gles2_cmd_format.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 defines the GLES2 command buffer commands.
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_H_
 #define GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_H_
 
 
@@ skipping 183 matching lines @@
   int32_t matrix_stride;
   int32_t is_row_major;
 };
 
 // The format of the bucket filled out by GetUniformsivES3CHROMIUM
 struct UniformsES3Header {
   uint32_t num_uniforms;
   // UniformES3Info uniforms[num_uniforms];
 };
 
+// The format of fence sync tokens.
+struct SyncToken {
+  int channel_client_id;
+  uint32_t route_id;
+  uint32_t release_count;
+};
+
 // The format of QuerySync used by EXT_occlusion_query_boolean
 struct QuerySync {
   void Reset() {
     process_count = 0;
     result = 0;
   }
 
   base::subtle::Atomic32 process_count;
   uint64_t result;
 };
@@ skipping 157 matching lines @@
     "offset of CreateAndConsumeTextureCHROMIUMImmediate.client_id should be 8");
 
 
 #pragma pack(pop)
 
 }  // namespace cmd
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_H_