Convert //ash from scoped_ptr to std::unique_ptr

ash/accelerators/magnifier_key_scroller_unittest.cc

 // Copyright 2014 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 "ash/accelerators/magnifier_key_scroller.h"
 
 #include "ash/magnifier/magnification_controller.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/window_util.h"
@@ skipping 12 matching lines @@
   // ui::EventHandler overrides:
   void OnKeyEvent(ui::KeyEvent* event) override {
     key_event.reset(new ui::KeyEvent(
         event->type(), event->key_code(), event->flags()));
   }
 
   const ui::KeyEvent* event() const { return key_event.get(); }
   void reset() { key_event.reset(); }
 
  private:
-  scoped_ptr<ui::KeyEvent> key_event;
+  std::unique_ptr<ui::KeyEvent> key_event;
 
   DISALLOW_COPY_AND_ASSIGN(KeyEventDelegate);
 };
 
 }  // namespace
 
 typedef ash::test::AshTestBase MagnifierKeyScrollerTest;
 
 TEST_F(MagnifierKeyScrollerTest, Basic) {
   KeyEventDelegate delegate;
-  scoped_ptr<aura::Window> window(CreateTestWindowInShellWithDelegate(
-      &delegate,
-      0,
-      gfx::Rect(10, 10, 100, 100)));
+  std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithDelegate(
+      &delegate, 0, gfx::Rect(10, 10, 100, 100)));
   wm::ActivateWindow(window.get());
 
   MagnifierKeyScroller::ScopedEnablerForTest scoped;
   Shell* shell = Shell::GetInstance();
   MagnificationController* controller = shell->magnification_controller();
   controller->SetEnabled(true);
 
   EXPECT_EQ("200,150", controller->GetWindowPosition().ToString());
   ui::test::EventGenerator& generator = GetEventGenerator();
 
@@ skipping 45 matching lines @@
   EXPECT_EQ(ui::ET_KEY_PRESSED, delegate.event()->type());
   delegate.reset();
 
   generator.ReleaseKey(ui::VKEY_DOWN, 0);
   ASSERT_TRUE(delegate.event());
   EXPECT_EQ(ui::ET_KEY_RELEASED, delegate.event()->type());
   delegate.reset();
 }
 
 }  // namespace ash