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

gpu/command_buffer/common/constants.h

 /*
  * 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 12 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 
-#ifndef O3D_COMMAND_BUFFER_COMMON_CROSS_CONSTANTS_H_
-#define O3D_COMMAND_BUFFER_COMMON_CROSS_CONSTANTS_H_
+#ifndef GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_
+#define GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_
 
 #include "base/basictypes.h"
 
-namespace command_buffer {
+namespace gpu {
 
 typedef int32 CommandBufferOffset;
 const CommandBufferOffset kInvalidCommandBufferOffset = -1;
 
 // Status of the command buffer service. It does not process commands
 // (meaning: get will not change) unless in kParsing state.
 namespace parser_status {
   enum ParserStatus {
     kNotConnected,  // The service is not connected - initial state.
     kNoBuffer,      // The service is connected but no buffer was set.
@@ skipping 10 matching lines @@
     kParseOutOfBounds,
     kParseUnknownCommand,
     kParseInvalidArguments,
   };
 }
 
 // Invalid shared memory Id, returned by RegisterSharedMemory in case of
 // failure.
 const int32 kInvalidSharedMemoryId = -1;
 
-}  // namespace command_buffer
+}  // namespace gpu
 
-#endif  // O3D_COMMAND_BUFFER_COMMON_CROSS_CONSTANTS_H_
+#endif  // GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_