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

chrome/browser/ui/cocoa/screen_capture_notification_ui_cocoa.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.
 
 #include "chrome/browser/ui/cocoa/screen_capture_notification_ui_cocoa.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/compiler_specific.h"
 #include "base/i18n/rtl.h"
@@ skipping 49 matching lines @@
   DCHECK(!stop_callback.is_null());
   DCHECK(!windowController_);
 
   windowController_.reset([[ScreenCaptureNotificationController alloc]
       initWithCallback:stop_callback
                   text:text_]);
   [windowController_ showWindow:nil];
   return [[windowController_ window] windowNumber];
 }
 
-scoped_ptr<ScreenCaptureNotificationUI> ScreenCaptureNotificationUI::Create(
-    const base::string16& text) {
-  return scoped_ptr<ScreenCaptureNotificationUI>(
+std::unique_ptr<ScreenCaptureNotificationUI>
+ScreenCaptureNotificationUI::Create(const base::string16& text) {
+  return std::unique_ptr<ScreenCaptureNotificationUI>(
       new ScreenCaptureNotificationUICocoa(text));
 }
 
 @implementation ScreenCaptureNotificationController
 - (id)initWithCallback:(const base::Closure&)stop_callback
                   text:(const base::string16&)text {
   base::scoped_nsobject<NSWindow> window(
       [[NSWindow alloc] initWithContentRect:ui::kWindowSizeDeterminedLater
                                   styleMask:NSBorderlessWindowMask
                                     backing:NSBackingStoreBuffered
@@ skipping 172 matching lines @@
   self = [super
       initWithFrame:NSMakeRect(0, 0, gripImage.Width(), gripImage.Height())];
   [self setImage:gripImage.ToNSImage()];
   return self;
 }
 
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 @end