Convert //content from scoped_ptr to std::unique_ptr

content/test/render_thread_impl_browser_test_ipc_helper.h

Index: content/test/render_thread_impl_browser_test_ipc_helper.h
diff --git a/content/test/render_thread_impl_browser_test_ipc_helper.h b/content/test/render_thread_impl_browser_test_ipc_helper.h
index b0816515191209e5174eef82ecb2293e8ec8816b..8420d6a54863feff0b9127815958b1743908b029 100644
--- a/content/test/render_thread_impl_browser_test_ipc_helper.h
+++ b/content/test/render_thread_impl_browser_test_ipc_helper.h
@@ -44,12 +44,12 @@ class RenderThreadImplBrowserIPCTestHelper {
   void SetupIpcThread();
   void SetupMojo();
 
-  scoped_ptr<IPC::ChannelProxy> channel_;
-  scoped_ptr<base::Thread> ipc_thread_;
-  scoped_ptr<base::MessageLoopForIO> message_loop_;
-  scoped_ptr<DummyListener> dummy_listener_;
-  scoped_ptr<IPC::ScopedIPCSupport> ipc_support_;
-  scoped_ptr<MojoApplicationHost> mojo_application_host_;
+  std::unique_ptr<IPC::ChannelProxy> channel_;
+  std::unique_ptr<base::Thread> ipc_thread_;
+  std::unique_ptr<base::MessageLoopForIO> message_loop_;
+  std::unique_ptr<DummyListener> dummy_listener_;
+  std::unique_ptr<IPC::ScopedIPCSupport> ipc_support_;
+  std::unique_ptr<MojoApplicationHost> mojo_application_host_;
   mojo::ScopedMessagePipeHandle message_pipe_handle_;
   std::string channel_id_;
 };