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

chrome/browser/ui/cocoa/app_menu/app_menu_controller.mm

 // Copyright (c) 2011 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/app_menu/app_menu_controller.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/mac/bundle_locations.h"
@@ skipping 95 matching lines @@
 
  private:
   void OnZoomLevelChanged(const content::HostZoomMap::ZoomLevelChange& change) {
     AppMenuModel* appMenuModel = [controller_ appMenuModel];
     appMenuModel->UpdateZoomControls();
     const base::string16 level =
         appMenuModel->GetLabelForCommandId(IDC_ZOOM_PERCENT_DISPLAY);
     [[controller_ zoomDisplay] setTitle:SysUTF16ToNSString(level)];
   }
 
-  scoped_ptr<content::HostZoomMap::Subscription> subscription_;
+  std::unique_ptr<content::HostZoomMap::Subscription> subscription_;
 
   AppMenuController* controller_;  // Weak; owns this.
 
   DISALLOW_COPY_AND_ASSIGN(ZoomLevelObserver);
 };
 
 class ToolbarActionsBarObserverHelper : public ToolbarActionsBarObserver {
  public:
   ToolbarActionsBarObserverHelper(AppMenuController* controller,
                                   ToolbarActionsBar* toolbar_actions_bar)
@@ skipping 499 matching lines @@
   // (and thus, after all our ability to adjust it normally). Throw in the
   // towel, and simply don't let the frame move from where it's supposed to be.
   // TODO(devlin): Yet another Cocoa hack. It'd be good to find a workaround,
   // but unlikely unless we replace the Cocoa menu implementation.
   NSView* containerSuperview = [overflowActionsContainerView_ superview];
   if (NSMinX([containerSuperview frame]) != 0)
     [containerSuperview setFrameOrigin:NSZeroPoint];
 }
 
 @end  // @implementation AppMenuButtonViewController