Fixed compile/link errors for gpu unit-tests. I had to mostly fix signed/unsi...

gpu/command_buffer/service/gpu_processor_unittest.cc

 // Copyright (c) 2009 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 "base/at_exit.h"
 #include "base/message_loop.h"
 #include "gpu/command_buffer/common/command_buffer_mock.h"
 #include "gpu/command_buffer/service/mocks.h"
 #include "gpu/command_buffer/service/gpu_processor.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
@@ skipping 57 matching lines @@
     MessageLoop::current()->RunAllPending();
   }
 
   error::Error GetError() {
     return command_buffer_->GetState().error;
   }
 
   base::AtExitManager at_exit_manager;
   MessageLoop message_loop;
   scoped_ptr<MockCommandBuffer> command_buffer_;
-  scoped_ptr<::base::SharedMemory> shared_memory_;
+  scoped_ptr<base::SharedMemory> shared_memory_;
   Buffer shared_memory_buffer_;
   int32* buffer_;
   gles2::MockGLES2Decoder* decoder_;
   CommandParser* parser_;
   scoped_ptr<AsyncAPIMock> async_api_;
   scoped_refptr<GPUProcessor> processor_;
 };
 
 TEST_F(GPUProcessorTest, ProcessorDoesNothingIfRingBufferIsEmpty) {
   CommandBuffer::State state;
@@ skipping 157 matching lines @@
 
   EXPECT_EQ(kRingBufferSize, processor_->GetSharedMemoryBuffer(7).size);
 }
 
 TEST_F(GPUProcessorTest, SetTokenForwardsToCommandBuffer) {
   EXPECT_CALL(*command_buffer_, SetToken(7));
   processor_->set_token(7);
 }
 
 }  // namespace gpu