Revert of Mojo multiple command buffer support and sample

mojo/gles2/command_buffer_client_impl.cc

 // Copyright 2014 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 "mojo/gles2/command_buffer_client_impl.h"
 
 #include <limits>
 
 #include "base/logging.h"
 #include "base/process/process_handle.h"
@@ skipping 190 matching lines @@
   NOTIMPLEMENTED();
   return NULL;
 }
 
 void CommandBufferClientImpl::DestroyGpuMemoryBuffer(int32 id) {
   // TODO(piman)
   NOTIMPLEMENTED();
 }
 
 uint32 CommandBufferClientImpl::InsertSyncPoint() {
-  // TODO(jamesr): Optimize this.
-  WaitForGetOffsetInRange(last_put_offset_, last_put_offset_);
+  // TODO(piman)
+  NOTIMPLEMENTED();
   return 0;
 }
 
 uint32 CommandBufferClientImpl::InsertFutureSyncPoint() {
-  // TODO(jamesr): Optimize this.
-  WaitForGetOffsetInRange(last_put_offset_, last_put_offset_);
+  // TODO(piman)
+  NOTIMPLEMENTED();
   return 0;
 }
 
 void CommandBufferClientImpl::RetireSyncPoint(uint32 sync_point) {
   // TODO(piman)
   NOTIMPLEMENTED();
 }
 
 void CommandBufferClientImpl::SignalSyncPoint(uint32 sync_point,
                                               const base::Closure& callback) {
@@ skipping 52 matching lines @@
     DidDestroy();
     return;
   }
 
   if (state->generation - last_state_.generation < 0x80000000U)
     last_state_ = state.To<State>();
 }
 
 }  // namespace gles2
 }  // namespace mojo