Clear Browsing Data hook added and some small tests.

chrome/browser/automation/automation_provider.h

 // Copyright (c) 2010 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.
 
 // This implements a browser-side endpoint for UI automation activity.
 // The client-side endpoint is implemented by AutomationProxy.
 // The entire lifetime of this object should be contained within that of
 // the BrowserProcess, and in particular the NotificationService that's
 // hung off of it.
 
@@ skipping 423 matching lines @@
   void OmniboxAcceptInput(Browser* browser,
                           DictionaryValue* args,
                           IPC::Message* reply_message);
 
   // Save the contents of a tab into a file.
   // Uses the JSON interface for input/output.
   void SaveTabContents(Browser* browser,
                        DictionaryValue* args,
                        IPC::Message* reply_message);
 
+  // Clear the specified browsing data. This call provides similar
+  // functionality to RemoveBrowsingData but is synchronous.
+  // Uses the JSON interface for input/output.
+  void ClearBrowsingData(Browser* browser,
+                         DictionaryValue* args,
+                         IPC::Message* reply_message);
+
   // Get info about theme.
   // Uses the JSON interface for input/output.
   void GetThemeInfo(Browser* browser,
                     DictionaryValue* args,
                     IPC::Message* reply_message);
 
   // Get the profiles that are currently saved to the DB.
   // Uses the JSON interface for input/output.
   void GetAutoFillProfile(Browser* browser,
                           DictionaryValue* args,
@@ skipping 453 matching lines @@
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   void OnRemoveProvider();  // Called via PostTask
 
   NotificationRegistrar registrar_;
 };
 
 #endif  // CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_H_