Remove all the unnused automation IPCs. These were used by UI tests that have been converted to bro…

chrome/browser/automation/automation_tab_tracker.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_BROWSER_AUTOMATION_AUTOMATION_TAB_TRACKER_H_
 #define CHROME_BROWSER_AUTOMATION_AUTOMATION_TAB_TRACKER_H_
 #pragma once
 
 #include <map>
 
@@ skipping 10 matching lines @@
   explicit AutomationTabTracker(IPC::Message::Sender* automation);
   virtual ~AutomationTabTracker();
 
   virtual void AddObserver(content::NavigationController* resource);
   virtual void RemoveObserver(content::NavigationController* resource);
 
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details);
 
-  base::Time GetLastNavigationTime(int handle);
-
  private:
-  // Last time a navigation occurred.
-  std::map<content::NavigationController*, base::Time> last_navigation_times_;
-
   DISALLOW_COPY_AND_ASSIGN(AutomationTabTracker);
 };
 
 #endif  // CHROME_BROWSER_AUTOMATION_AUTOMATION_TAB_TRACKER_H_