Some scoped_ptr -> std::unique_ptr conversion, especially under //mojo.

mojo/message_pump/message_pump_mojo_unittest.cc

 // Copyright 2013 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 "mojo/message_pump/message_pump_mojo.h"
 
 #include "base/message_loop/message_loop_test.h"
 #include "base/run_loop.h"
 #include "mojo/message_pump/message_pump_mojo_handler.h"
 #include "mojo/public/cpp/system/message_pipe.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace common {
 namespace test {
 
-scoped_ptr<base::MessagePump> CreateMojoMessagePump() {
-  return scoped_ptr<base::MessagePump>(new MessagePumpMojo());
-}
-
-RUN_MESSAGE_LOOP_TESTS(Mojo, &CreateMojoMessagePump);
+RUN_MESSAGE_LOOP_TESTS(Mojo, &MessagePumpMojo::Create);
 
 class CountingMojoHandler : public MessagePumpMojoHandler {
  public:
   CountingMojoHandler() : success_count_(0), error_count_(0) {}
 
   void OnHandleReady(const Handle& handle) override {
     ReadMessageRaw(static_cast<const MessagePipeHandle&>(handle),
                    NULL,
                    NULL,
                    NULL,
@@ skipping 83 matching lines @@
   for (int i = 0; i < 2; ++i) {
     base::RunLoop run_loop;
     run_loop.RunUntilIdle();
   }
   EXPECT_EQ(1, handler.error_count());
 }
 
 }  // namespace test
 }  // namespace common
 }  // namespace mojo