Convert //ash from scoped_ptr to std::unique_ptr

ash/system/date/date_view_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 "ash/system/date/date_view.h"
 
 #include "ash/test/ash_test_base.h"
 #include "ui/views/controls/label.h"
 
 namespace ash {
@@ skipping 16 matching lines @@
   views::Label* vertical_label_minutes() {
     return time_view_->vertical_label_minutes_.get();
   }
 
   // Creates a time view with horizontal or vertical |clock_layout|.
   void CreateTimeView(TrayDate::ClockLayout clock_layout) {
     time_view_.reset(new TimeView(clock_layout));
   }
 
  private:
-  scoped_ptr<TimeView> time_view_;
+  std::unique_ptr<TimeView> time_view_;
 
   DISALLOW_COPY_AND_ASSIGN(TimeViewTest);
 };
 
 // Test the basics of the time view, mostly to ensure we don't leak memory.
 TEST_F(TimeViewTest, Basics) {
   // A newly created horizontal clock only has the horizontal label.
   CreateTimeView(TrayDate::HORIZONTAL_CLOCK);
   EXPECT_EQ(time_view(), horizontal_label()->parent());
   EXPECT_FALSE(vertical_label_hours()->parent());
   EXPECT_FALSE(vertical_label_minutes()->parent());
 
   // Switching the clock to vertical updates the labels.
   time_view()->UpdateClockLayout(TrayDate::VERTICAL_CLOCK);
   EXPECT_FALSE(horizontal_label()->parent());
   EXPECT_EQ(time_view(), vertical_label_hours()->parent());
   EXPECT_EQ(time_view(), vertical_label_minutes()->parent());
 
   // Switching back to horizontal updates the labels again.
   time_view()->UpdateClockLayout(TrayDate::HORIZONTAL_CLOCK);
   EXPECT_EQ(time_view(), horizontal_label()->parent());
   EXPECT_FALSE(vertical_label_hours()->parent());
   EXPECT_FALSE(vertical_label_minutes()->parent());
 }
 
 }  // namespace tray
 }  // namespace ash