Fix bugs in the new task manager Impl so that ported old browsertests pass

chrome/browser/task_management/providers/web_contents/tab_contents_task.cc

 // Copyright 2015 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/task_management/providers/web_contents/tab_contents_task.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_registry.h"
@@ skipping 41 matching lines @@
 
 base::string16 TabContentsTask::GetCurrentTitle() const {
   // Check if the URL is an app and if the tab is hoisting an extension.
   Profile* profile =
       Profile::FromBrowserContext(web_contents()->GetBrowserContext());
   extensions::ProcessMap* process_map = extensions::ProcessMap::Get(profile);
   extensions::ExtensionRegistry* extension_registry =
       extensions::ExtensionRegistry::Get(profile);
   GURL url = web_contents()->GetURL();
 
-  bool is_app = process_map->Contains(process_id()) &&
+  bool is_app = process_map->Contains(GetChildProcessUniqueID()) &&
       extension_registry->enabled_extensions().GetAppByURL(url) != nullptr;
   bool is_extension = HostsExtension(web_contents());
   bool is_incognito = profile->IsOffTheRecord();
 
   base::string16 tab_title =
       RendererTask::GetTitleFromWebContents(web_contents());
 
   // Fall back to the URL if the title is empty.
   return PrefixRendererTitle(tab_title,
                              is_app,
                              is_extension,
                              is_incognito,
                              false);  // is_background.
 }
 
 }  // namespace task_management