Add CommandBuffer::SetGetBuffer

gpu/command_buffer/client/mapped_memory_unittest.cc

Index: gpu/command_buffer/client/mapped_memory_unittest.cc
diff --git a/gpu/command_buffer/client/mapped_memory_unittest.cc b/gpu/command_buffer/client/mapped_memory_unittest.cc
index 81b665529aa8272ed3b2a13e766e9545216bc6bb..c18ec9f540cb4cb020ec7522b510055e1eba0add 100644
--- a/gpu/command_buffer/client/mapped_memory_unittest.cc
+++ b/gpu/command_buffer/client/mapped_memory_unittest.cc
@@ -42,15 +42,9 @@ class MappedMemoryTestBase : public testing::Test {
                               Return(error::kNoError)));
 
     command_buffer_.reset(new CommandBufferService);
-    command_buffer_->Initialize(kBufferSize);
-    Buffer ring_buffer = command_buffer_->GetRingBuffer();
+    command_buffer_->Initialize();
 
-    parser_ = new CommandParser(ring_buffer.ptr,
-                                ring_buffer.size,
-                                0,
-                                ring_buffer.size,
-                                0,
-                                api_mock_.get());
+    parser_ = new CommandParser(api_mock_.get());
 
     gpu_scheduler_.reset(new GpuScheduler(
         command_buffer_.get(), NULL, parser_));
@@ -61,6 +55,12 @@ class MappedMemoryTestBase : public testing::Test {
 
     helper_.reset(new CommandBufferHelper(command_buffer_.get()));
     helper_->Initialize(kBufferSize);
+
+    // Note: parser->SetBuffer would normally be called through
+    // helper_->Initialize but currently it needs a GpuCommandBufferStub as the
+    // CommandBuffer instead of the CommandBufferService for that to happen.
+    Buffer ring_buffer = helper_->get_ring_buffer();
+    parser_->SetBuffer(ring_buffer.ptr, ring_buffer.size, 0, ring_buffer.size);
   }
 
   int32 GetToken() {