Removes pinning code from TopSites as we no longer need it.

chrome/browser/automation/automation_provider_observers.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/automation/automation_provider_observers.h"
 
 #include <deque>
 #include <string>
 #include <vector>
 
@@ skipping 2122 matching lines @@
   }
 
   ListValue* list_value = new ListValue;
   for (size_t i = 0; i < visited_list.size(); ++i) {
     const history::MostVisitedURL& visited = visited_list[i];
     if (visited.url.spec().empty())
       break;  // This is the signal that there are no more real visited sites.
     DictionaryValue* dict = new DictionaryValue;
     dict->SetString("url", visited.url.spec());
     dict->SetString("title", visited.title);
-    dict->SetBoolean("is_pinned", top_sites_->IsURLPinned(visited.url));
     list_value->Append(dict);
   }
   ntp_info_->Set("most_visited", list_value);
   AutomationJSONReply(automation_,
                       reply_message_.release()).SendSuccess(ntp_info_.get());
   delete this;
 }
 
 AppLaunchObserver::AppLaunchObserver(
     NavigationController* controller,
@@ skipping 987 matching lines @@
   }
 
   ExtensionHost* host = content::Details<ExtensionHost>(details).ptr();
   if (host->extension_id() == extension_id_ &&
       host->extension_host_type() == chrome::VIEW_TYPE_EXTENSION_POPUP) {
     AutomationJSONReply(automation_, reply_message_.release())
         .SendSuccess(NULL);
     delete this;
   }
 }