convert //mash to std::unique_ptr

mash/wm/accelerator_registrar_unittest.cc

 // Copyright 2015 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 <stdint.h>
 
+#include <memory>
+
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "components/mus/public/cpp/event_matcher.h"
 #include "components/mus/public/cpp/window.h"
 #include "components/mus/public/interfaces/accelerator_registrar.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/shell/public/cpp/shell_test.h"
 
 using mus::mojom::AcceleratorHandler;
@@ skipping 33 matching lines @@
   void AddAcceleratorCallback(bool success) {
     DCHECK(run_loop_ && run_loop_->running());
     add_accelerator_result_ = success;
     run_loop_->Quit();
   }
 
   // AcceleratorHandler:
   void OnAccelerator(uint32_t id, mus::mojom::EventPtr event) override {}
 
   std::set<uint32_t> installed_accelerators_;
-  scoped_ptr<base::RunLoop> run_loop_;
+  std::unique_ptr<base::RunLoop> run_loop_;
   mojo::Binding<AcceleratorHandler> binding_;
   AcceleratorRegistrarPtr registrar_;
   bool add_accelerator_result_;
 
   DISALLOW_COPY_AND_ASSIGN(TestAcceleratorHandler);
 };
 
 class AcceleratorRegistrarTest : public mojo::test::ShellTest {
  public:
   AcceleratorRegistrarTest() : mojo::test::ShellTest("exe:mash_unittests") {}
@@ skipping 34 matching lines @@
   EXPECT_FALSE(handler_first.AttemptToInstallAccelerator(
       3, mus::CreateKeyMatcher(mus::mojom::KeyboardCode::N,
                                mus::mojom::kEventFlagShiftDown)));
   EXPECT_FALSE(handler_second.AttemptToInstallAccelerator(
       3, mus::CreateKeyMatcher(mus::mojom::KeyboardCode::N,
                                mus::mojom::kEventFlagShiftDown)));
 }
 
 }  // namespace wm
 }  // namespace mash