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

chrome/browser/ui/tab_helpers.cc

 // Copyright 2014 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/tab_helpers.h"
 
 #include "base/command_line.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/content_settings/chrome_content_settings_client.h"
@@ skipping 174 matching lines @@
   ViewAndroidHelper::CreateForWebContents(web_contents);
   VoiceSearchTabHelper::CreateForWebContents(web_contents);
 #else
   BookmarkTabHelper::CreateForWebContents(web_contents);
   extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
       web_contents);
   extensions::WebNavigationTabObserver::CreateForWebContents(web_contents);
   HungPluginTabHelper::CreateForWebContents(web_contents);
   ManagePasswordsUIController::CreateForWebContents(web_contents);
   pdf::PDFWebContentsHelper::CreateForWebContentsWithClient(
-      web_contents,
-      scoped_ptr<pdf::PDFWebContentsHelperClient>(
-          new ChromePDFWebContentsHelperClient()));
+      web_contents, std::unique_ptr<pdf::PDFWebContentsHelperClient>(
+                        new ChromePDFWebContentsHelperClient()));
   PermissionBubbleManager::CreateForWebContents(web_contents);
   PluginObserver::CreateForWebContents(web_contents);
   SadTabHelper::CreateForWebContents(web_contents);
   safe_browsing::SafeBrowsingTabObserver::CreateForWebContents(web_contents);
   SearchEngineTabHelper::CreateForWebContents(web_contents);
   TabContentsSyncedTabDelegate::CreateForWebContents(web_contents);
   TabDialogs::CreateForWebContents(web_contents);
   ThumbnailTabHelper::CreateForWebContents(web_contents);
   web_modal::WebContentsModalDialogManager::CreateForWebContents(web_contents);
 
@@ skipping 39 matching lines @@
 
   if (predictors::ResourcePrefetchPredictorFactory::GetForProfile(
       web_contents->GetBrowserContext())) {
     predictors::ResourcePrefetchPredictorTabHelper::CreateForWebContents(
         web_contents);
   }
 
   if (tracing::NavigationTracingObserver::IsEnabled())
     tracing::NavigationTracingObserver::CreateForWebContents(web_contents);
 }