Provide DevToolsHttpHandlerDelegate with an ability to provide additional page info

chrome/browser/devtools/browser_list_tabcontents_provider.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 "chrome/browser/devtools/browser_list_tabcontents_provider.h"
 
 #include "base/path_service.h"
 #include "chrome/browser/history/top_sites.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ skipping 89 matching lines @@
 }
 
 content::DevToolsHttpHandlerDelegate::TargetType
 BrowserListTabContentsProvider::GetTargetType(content::RenderViewHost* rvh) {
   for (TabContentsIterator it; !it.done(); it.Next())
     if (rvh == it->GetRenderViewHost())
       return kTargetTypeTab;
 
   return kTargetTypeOther;
 }
+
+std::string BrowserListTabContentsProvider::GetViewDescription(
+    content::RenderViewHost*) {
+  return "";
+}