Fix AutomationProvider from logging false errors by replacing the persistent

chrome/browser/automation/automation_provider.cc

 // Copyright (c) 2011 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.h"
 
 #include <set>
 
 #include "base/callback.h"
 #include "base/debug/trace_event.h"
@@ skipping 106 matching lines @@
 
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   browser_tracker_.reset(new AutomationBrowserTracker(this));
   extension_tracker_.reset(new AutomationExtensionTracker(this));
   tab_tracker_.reset(new AutomationTabTracker(this));
   window_tracker_.reset(new AutomationWindowTracker(this));
   autocomplete_edit_tracker_.reset(
       new AutomationAutocompleteEditTracker(this));
   new_tab_ui_load_observer_.reset(new NewTabUILoadObserver(this));
-  dom_operation_observer_.reset(new DomOperationMessageSender(this));
   metric_event_duration_observer_.reset(new MetricEventDurationObserver());
   extension_test_result_observer_.reset(
       new ExtensionTestResultNotificationObserver(this));
   g_browser_process->AddRefModule();
 
   TRACE_EVENT_END("AutomationProvider::AutomationProvider", 0, "");
 }
 
 AutomationProvider::~AutomationProvider() {
   STLDeleteContainerPairSecondPointers(port_containers_.begin(),
@@ skipping 872 matching lines @@
     }
   }
 }
 
 void AutomationProvider::SaveAsAsync(int tab_handle) {
   NavigationController* tab = NULL;
   TabContents* tab_contents = GetTabContentsForHandle(tab_handle, &tab);
   if (tab_contents)
     tab_contents->OnSavePage();
 }