Add a preference for why an extension is disabled.

chrome/browser/automation/testing_automation_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/automation/testing_automation_provider.h"
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 4691 matching lines @@
       new ExtensionReadyNotificationObserver(
           manager,
           service,
           this,
           reply_message);
       service->EnableExtension(extension->id());
     } else {
       AutomationJSONReply(this, reply_message).SendSuccess(NULL);
     }
   } else {
-    service->DisableExtension(extension->id());
+    service->DisableExtension(extension->id(), Extension::DISABLE_USER_ACTION);
     AutomationJSONReply(this, reply_message).SendSuccess(NULL);
   }
 
   service->SetIsIncognitoEnabled(extension->id(), allow_in_incognito);
 }
 
 namespace {
 
 // Selects the given |browser| and |tab| if not selected already.
 void EnsureTabSelected(Browser* browser, WebContents* tab) {
@@ skipping 2376 matching lines @@
       *browser_handle = browser_tracker_->Add(browser);
       *success = true;
     }
   }
 }
 
 void TestingAutomationProvider::OnRemoveProvider() {
   if (g_browser_process)
     g_browser_process->GetAutomationProviderList()->RemoveProvider(this);
 }