Start refractoring extension permissions into ExtensionPermissionSet.

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 790 matching lines @@
     // The observer will delete itself when done.
     new ExtensionReadyNotificationObserver(
         manager,
         this,
         AutomationMsg_InstallExtensionAndGetHandle::ID,
         reply_message);
 
     ExtensionInstallUI* client =
         (with_ui ? new ExtensionInstallUI(profile_) : NULL);
     scoped_refptr<CrxInstaller> installer(service->MakeCrxInstaller(client));
+    if (!with_ui)
+      installer->set_allow_silent_install(true);
     installer->set_install_cause(extension_misc::INSTALL_CAUSE_AUTOMATION);
     installer->InstallCrx(crx_path);
   } else {
     AutomationMsg_InstallExtensionAndGetHandle::WriteReplyParams(
         reply_message, 0);
     Send(reply_message);
   }
 }
 
 void AutomationProvider::UninstallExtension(int extension_handle,
@@ skipping 141 matching lines @@
 
 void AutomationProvider::SaveAsAsync(int tab_handle) {
   NavigationController* tab = NULL;
   TabContents* tab_contents = GetTabContentsForHandle(tab_handle, &tab);
   if (tab_contents) {
     TabContentsWrapper* wrapper =
         TabContentsWrapper::GetCurrentWrapperForContents(tab_contents);
     wrapper->download_tab_helper()->OnSavePage();
   }
 }