Added a unique command buffer ID for command buffers.

gpu/command_buffer/client/mapped_memory_unittest.cc

 // Copyright (c) 2012 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 "gpu/command_buffer/client/mapped_memory.h"
 
 #include <list>
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 29 matching lines @@
         .WillRepeatedly(DoAll(Invoke(api_mock_.get(), &AsyncAPIMock::SetToken),
                               Return(error::kNoError)));
 
     {
       TransferBufferManager* manager = new TransferBufferManager(nullptr);
       transfer_buffer_manager_ = manager;
       EXPECT_TRUE(manager->Initialize());
     }
 
     command_buffer_.reset(
-        new CommandBufferService(transfer_buffer_manager_.get()));
+        new CommandBufferService(transfer_buffer_manager_.get(),
+                                 kCommandBufferNamespace_InProcess,
+                                 0));
     EXPECT_TRUE(command_buffer_->Initialize());
 
     gpu_scheduler_.reset(new GpuScheduler(
         command_buffer_.get(), api_mock_.get(), NULL));
     command_buffer_->SetPutOffsetChangeCallback(base::Bind(
         &GpuScheduler::PutChanged, base::Unretained(gpu_scheduler_.get())));
     command_buffer_->SetGetBufferChangeCallback(base::Bind(
         &GpuScheduler::SetGetBuffer, base::Unretained(gpu_scheduler_.get())));
 
     api_mock_->set_engine(gpu_scheduler_.get());
@@ skipping 364 matching lines @@
   void* mem4 = manager_->Alloc(kLimit, &id4, &offset4);
   ASSERT_TRUE(mem4);
   EXPECT_EQ(id2, id4);
   EXPECT_EQ(offset2, offset4);
 
   manager_->Free(mem1);
   manager_->Free(mem4);
 }
 
 }  // namespace gpu