convert //gpu to std::unique_ptr

gpu/command_buffer/client/transfer_buffer_unittest.cc

Index: gpu/command_buffer/client/transfer_buffer_unittest.cc
diff --git a/gpu/command_buffer/client/transfer_buffer_unittest.cc b/gpu/command_buffer/client/transfer_buffer_unittest.cc
index 7a98b804972f9caf8cce2722be5051d95979a1d9..d8f17572c1cd1b53fc251fa6ddbe67c8f7961d18 100644
--- a/gpu/command_buffer/client/transfer_buffer_unittest.cc
+++ b/gpu/command_buffer/client/transfer_buffer_unittest.cc
@@ -56,9 +56,9 @@ class TransferBufferTest : public testing::Test {
     return command_buffer_.get();
   }
 
-  scoped_ptr<MockClientCommandBufferMockFlush> command_buffer_;
-  scoped_ptr<CommandBufferHelper> helper_;
-  scoped_ptr<TransferBuffer> transfer_buffer_;
+  std::unique_ptr<MockClientCommandBufferMockFlush> command_buffer_;
+  std::unique_ptr<CommandBufferHelper> helper_;
+  std::unique_ptr<TransferBuffer> transfer_buffer_;
   int32_t transfer_buffer_id_;
 };
 
@@ -260,9 +260,9 @@ class TransferBufferExpandContractTest : public testing::Test {
     return command_buffer_.get();
   }
 
-  scoped_ptr<MockClientCommandBufferCanFail> command_buffer_;
-  scoped_ptr<CommandBufferHelper> helper_;
-  scoped_ptr<TransferBuffer> transfer_buffer_;
+  std::unique_ptr<MockClientCommandBufferCanFail> command_buffer_;
+  std::unique_ptr<CommandBufferHelper> helper_;
+  std::unique_ptr<TransferBuffer> transfer_buffer_;
   int32_t transfer_buffer_id_;
 };