[Extensions UI Cocoa] Make disabled actions respond to the keyboard

chrome/browser/ui/extensions/extension_action_view_controller.cc

 // Copyright 2014 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/ui/extensions/extension_action_view_controller.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 166 matching lines @@
 
 void ExtensionActionViewController::OnContextMenuClosed() {
   if (toolbar_actions_bar_ &&
       toolbar_actions_bar_->popped_out_action() == this &&
       !is_showing_popup()) {
     toolbar_actions_bar_->UndoPopOut();
   }
 }
 
 bool ExtensionActionViewController::ExecuteAction(bool by_user) {
+  if (!ExtensionIsValid())
+    return false;
+
+  if (!IsEnabled(view_delegate_->GetCurrentWebContents())) {
+    if (DisabledClickOpensMenu())
+      GetPreferredPopupViewController()->platform_delegate_->ShowContextMenu();
+    return false;
+  }
+
   return ExecuteAction(SHOW_POPUP, by_user);
 }
 
 void ExtensionActionViewController::UpdateState() {
   if (!ExtensionIsValid())
     return;
 
   view_delegate_->UpdateState();
 }
 
@@ skipping 198 matching lines @@
         extensions::ExtensionActionAPI::Get(browser_->profile());
     bool has_blocked_actions = api->HasBeenBlocked(extension(), web_contents);
     image_source->set_paint_blocked_actions_decoration(has_blocked_actions);
     image_source->set_paint_page_action_decoration(
         !has_blocked_actions && is_overflow &&
         api->PageActionWantsToRun(extension(), web_contents));
   }
 
   return image_source;
 }