Revert of Added SyncToken command buffer trait to help with IPC messages.

gpu/command_buffer/tests/gl_fence_sync_unittest.cc

 // 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.
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
 
 #include "base/memory/scoped_ptr.h"
-#include "gpu/command_buffer/common/sync_token.h"
 #include "gpu/command_buffer/service/sync_point_manager.h"
 #include "gpu/command_buffer/tests/gl_manager.h"
 #include "gpu/command_buffer/tests/gl_test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #define SHADER(Src) #Src
 
 namespace gpu {
 
@@ skipping 17 matching lines @@
 
   scoped_ptr<SyncPointManager> sync_point_manager_;
   GLManager gl1_;
   GLManager gl2_;
 };
 
 TEST_F(GLFenceSyncTest, SimpleReleaseWait) {
   gl1_.MakeCurrent();
 
   const GLuint64 fence_sync = glInsertFenceSyncCHROMIUM();
-  SyncToken sync_token;
+  GLbyte sync_token[GL_SYNC_TOKEN_SIZE_CHROMIUM];
   glFlush();
-  glGenSyncTokenCHROMIUM(fence_sync, sync_token.data);
+  glGenSyncTokenCHROMIUM(fence_sync, sync_token);
   ASSERT_TRUE(GL_NO_ERROR == glGetError());
 
   // Make sure it is actually released.
   scoped_refptr<SyncPointClientState> gl1_client_state =
       sync_point_manager_->GetSyncPointClientState(gl1_.GetNamespaceID(),
                                                    gl1_.GetCommandBufferID());
   EXPECT_TRUE(gl1_client_state->IsFenceSyncReleased(fence_sync));
 
   gl2_.MakeCurrent();
-  glWaitSyncTokenCHROMIUM(sync_token.data);
+  glWaitSyncTokenCHROMIUM(sync_token);
   glFinish();
 
   // gl2 should not have released anything.
   scoped_refptr<SyncPointClientState> gl2_client_state =
       sync_point_manager_->GetSyncPointClientState(gl2_.GetNamespaceID(),
                                                    gl2_.GetCommandBufferID());
   EXPECT_EQ(0u, gl2_client_state->fence_sync_release());
 }
 
 }  // namespace gpu