Switch SupportsUserData uses to use unique_ptr.

extensions/browser/view_type_utils.cc

 // 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.
 
 #include "extensions/browser/view_type_utils.h"
 
 #include "base/lazy_instance.h"
+#include "base/memory/ptr_util.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extensions_browser_client.h"
 
 using content::WebContents;
 
 namespace extensions {
 
 namespace {
 
 const char kViewTypeUserDataKey[] = "ViewTypeUserData";
@@ skipping 14 matching lines @@
   if (!tab)
     return VIEW_TYPE_INVALID;
 
   ViewTypeUserData* user_data = static_cast<ViewTypeUserData*>(
       tab->GetUserData(&kViewTypeUserDataKey));
 
   return user_data ? user_data->type() : VIEW_TYPE_INVALID;
 }
 
 void SetViewType(WebContents* tab, ViewType type) {
-  tab->SetUserData(&kViewTypeUserDataKey, new ViewTypeUserData(type));
+  tab->SetUserData(&kViewTypeUserDataKey,
+                   base::MakeUnique<ViewTypeUserData>(type));
 
   ExtensionsBrowserClient::Get()->AttachExtensionTaskManagerTag(tab, type);
 }
 
 }  // namespace extensions