Replace scoped_ptr with std::unique_ptr in //ui

ui/app_list/cocoa/app_list_window_controller_unittest.mm

 // 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.
 
 #import "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #import "testing/gtest_mac.h"
 #include "ui/app_list/app_list_view_delegate.h"
 #import "ui/app_list/cocoa/app_list_view_controller.h"
@@ skipping 11 matching lines @@
  protected:
   void TearDown() override;
 
   base::scoped_nsobject<AppListWindowController> controller_;
 
   app_list::test::AppListTestViewDelegate* delegate() {
     return delegate_.get();
   }
 
  private:
-  scoped_ptr<app_list::test::AppListTestViewDelegate> delegate_;
+  std::unique_ptr<app_list::test::AppListTestViewDelegate> delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListWindowControllerTest);
 };
 
 AppListWindowControllerTest::AppListWindowControllerTest()
     : delegate_(new app_list::test::AppListTestViewDelegate) {
   Init();
   controller_.reset([[AppListWindowController alloc] init]);
   [[controller_ appListViewController] setDelegate:delegate()];
 }
@@ skipping 43 matching lines @@
   EXPECT_TRUE([view_controller showingSearchResults]);
 
   EXPECT_EQ(0, delegate()->open_search_result_count());
   [view_controller openResult:nil];
   EXPECT_EQ(1, delegate()->open_search_result_count());
 
   EXPECT_TRUE([view_controller showingSearchResults]);
   [[controller_ window] close];  // Hide.
   EXPECT_FALSE([view_controller showingSearchResults]);
 }