This adds a webui overlay on the extensions page for showing what Extension keybindings are active.…

chrome/browser/ui/gtk/location_bar_view_gtk.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/ui/gtk/location_bar_view_gtk.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 1672 matching lines @@
   const ExtensionSet* extensions = owner_->browser()->profile()->
       GetExtensionService()->extensions();
   const Extension* extension =
       extensions->GetByID(page_action_->extension_id());
   window_ = owner_->browser()->window()->GetNativeHandle();
 
   ExtensionCommandService* command_service =
       ExtensionCommandServiceFactory::GetForProfile(
           owner_->browser()->profile());
   const extensions::Command* command =
-      command_service->GetActivePageActionCommand(extension->id());
+      command_service->GetPageActionCommand(
+          extension->id(), ExtensionCommandService::ACTIVE_ONLY);
   if (command) {
     // Found the browser action shortcut command, register it.
     keybinding_.reset(new ui::AcceleratorGtk(
         command->accelerator().key_code(),
         command->accelerator().IsShiftDown(),
         command->accelerator().IsCtrlDown(),
         command->accelerator().IsAltDown()));
 
     accel_group_ = gtk_accel_group_new();
     gtk_window_add_accel_group(window_, accel_group_);
@@ skipping 104 matching lines @@
     GdkModifierType modifier,
     void* user_data) {
   PageActionViewGtk* view = static_cast<PageActionViewGtk*>(user_data);
   if (!gtk_widget_get_visible(view->widget()))
     return FALSE;
 
   GdkEventButton event = {};
   event.button = 1;
   return view->OnButtonPressed(view->widget(), &event);
 }