Revert 93066 - Execute all GL commands up to the put offset reported by a each flush.This means g...

gpu/command_buffer/service/cmd_parser.cc

 // Copyright (c) 2011 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 implementation of the command parser.
 
 #include "gpu/command_buffer/service/cmd_parser.h"
 
 #include "base/logging.h"
 
@@ skipping 46 matching lines @@
       header.command, header.size - 1, buffer_ + get);
 
   // TODO(gman): If you want to log errors this is the best place to catch them.
   //     It seems like we need an official way to turn on a debug mode and
   //     get these errors.
   if (error::IsError(result)) {
     ReportError(header.command, result);
   }
 
   // If get was not set somewhere else advance it.
-  if (get == get_)
+  if (result != error::kWaiting && get == get_)
     get_ = (get + header.size) % entry_count_;
   return result;
 }
 
 void CommandParser::ReportError(unsigned int command_id,
                                 error::Error result) {
   DVLOG(1) << "Error: " << result << " for Command "
            << handler_->GetCommandName(command_id);
 }
 
 // Processes all the commands, while the buffer is not empty. Stop if an error
 // is encountered.
 error::Error CommandParser::ProcessAllCommands() {
   while (!IsEmpty()) {
     error::Error error = ProcessCommand();
     if (error)
       return error;
   }
   return error::kNoError;
 }
 
 }  // namespace gpu