Added CommandBufferClient, CommandBufferStub and some IPC messages....

gpu/command_buffer/common/cmd_buffer_common.cc

 /*
  * Copyright 2009, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 17 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 
 // This file contains the binary format definition of the command buffer and
 // command buffer commands.
 
 #include "gpu/command_buffer/common/cmd_buffer_common.h"
 
-namespace command_buffer {
+namespace gpu {
 namespace cmd {
 
 const char* GetCommandName(CommandId command_id) {
   static const char* const names[] = {
   #define COMMON_COMMAND_BUFFER_CMD_OP(name) # name,
 
   COMMON_COMMAND_BUFFER_CMDS(COMMON_COMMAND_BUFFER_CMD_OP)
 
   #undef COMMON_COMMAND_BUFFER_CMD_OP
   };
 
   int id = static_cast<int>(command_id);
   return (id >= 0 && id < kNumCommands) ? names[id] : "*unknown-command*";
 }
 
 }  // namespace cmd
-}  // namespace command_buffer
+}  // namespace gpu