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

chrome/browser/ui/cocoa/browser_window_controller_private.mm

 // Copyright (c) 2012 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 "chrome/browser/ui/cocoa/browser_window_controller_private.h"
 
 #include <cmath>
 
 #import "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 149 matching lines @@
 
   // Only save main window information to preferences.
   PrefService* prefs = browser_->profile()->GetPrefs();
   if (!prefs || browser_.get() != chrome::GetLastActiveBrowser())
     return;
 
   // Save the current work area, in flipped coordinates.
   gfx::Rect workArea(NSRectToCGRect([windowScreen visibleFrame]));
   workArea.set_y(monitorFrame.size.height - workArea.y() - workArea.height());
 
-  scoped_ptr<DictionaryPrefUpdate> update =
+  std::unique_ptr<DictionaryPrefUpdate> update =
       chrome::GetWindowPlacementDictionaryReadWrite(
           chrome::GetWindowName(browser_.get()),
           browser_->profile()->GetPrefs());
   base::DictionaryValue* windowPreferences = update->Get();
   windowPreferences->SetInteger("left", bounds.x());
   windowPreferences->SetInteger("top", bounds.y());
   windowPreferences->SetInteger("right", bounds.right());
   windowPreferences->SetInteger("bottom", bounds.bottom());
   windowPreferences->SetBoolean("maximized", false);
   windowPreferences->SetBoolean("always_on_top", false);
@@ skipping 1042 matching lines @@
   return nil;
 }
 
 - (BOOL)isFullscreenForTabContent {
   return browser_->exclusive_access_manager()
                  ->fullscreen_controller()
                  ->IsWindowFullscreenForTabOrPending();
 }
 
 @end  // @implementation BrowserWindowController(Private)