Added command buffer unit tests to gyp....

command_buffer/service/cross/cmd_buffer_engine_test.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 482 matching lines @@
 
   CommandBufferOffset fail_get = put;
   CommandHeader header;
   header.size = 3;
   header.command = 4;
   entries[put++].value_header = header;
   entries[put++].value_uint32 = 5;
   entries[put++].value_uint32 = 6;
 
   // we should be beyond the end of the buffer now.
-  DCHECK_LT(6, put);
+  DCHECK_LT(6U, put);
   put = 0;
 
   engine()->Put(put);
   while (get != put) {
     // When the parsing stop progressing, break.
     CommandBufferOffset new_get = engine()->WaitGetChanges(get);
     if (new_get == get) {
       EXPECT_EQ(new_get, engine()->Get());
       break;
     }
@@ skipping 103 matching lines @@
   EXPECT_CALL(*process_mock(), ProcessMessage()).WillOnce(Return(false));
   EXPECT_FALSE(engine()->DoWork());
   Mock::VerifyAndClearExpectations(process_mock());
 
   engine()->CloseConnection();
   DestroyCommandBuffer();
 }
 
 }  // namespace command_buffer
 }  // namespace o3d