Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/views/tabs/alert_indicator_button_unittest.cc

 // Copyright 2016 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 "chrome/browser/ui/views/tabs/alert_indicator_button.h"
 
 #include "chrome/browser/ui/views/tabs/fake_base_tab_strip_controller.h"
 #include "chrome/browser/ui/views/tabs/tab.h"
 #include "chrome/browser/ui/views/tabs/tab_strip.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 45 matching lines @@
   void StopAnimation(Tab* tab) {
     ASSERT_TRUE(tab->alert_indicator_button_->fade_animation_);
     tab->alert_indicator_button_->fade_animation_->Stop();
   }
 
   // Owned by TabStrip.
   FakeBaseTabStripController* controller_;
   // Owns |tab_strip_|.
   views::View parent_;
   TabStrip* tab_strip_;
-  scoped_ptr<views::Widget> widget_;
+  std::unique_ptr<views::Widget> widget_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AlertIndicatorButtonTest);
 };
 
 // This test verifies that the tab has its icon state updated when the alert
 // animation fade-out finishes.
 TEST_F(AlertIndicatorButtonTest, ButtonUpdateOnAudioStateAnimation) {
   controller_->AddPinnedTab(0, false);
   controller_->AddTab(1, true);
@@ skipping 24 matching lines @@
 
   // Rather than flakily waiting some unknown number of seconds for the fade
   // out animation to stop, reach out and stop the fade animation directly,
   // to make sure that it updates the tab appropriately when it's done.
   StopAnimation(media_tab);
 
   EXPECT_TRUE(showing_icon(media_tab));
   EXPECT_FALSE(showing_alert_indicator(media_tab));
   EXPECT_FALSE(showing_close_button(media_tab));
 }