Track the active ExtensionKeybindingRegistry and make it available to EventRewriter.

chrome/browser/ui/views/toolbar/toolbar_view.cc

 // Copyright 2013 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/views/toolbar/toolbar_view.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 299 matching lines @@
   return (translate_icon_view && translate_icon_view->visible()) ?
       translate_icon_view : app_menu_;
 }
 
 void ToolbarView::ExecuteExtensionCommand(
     const extensions::Extension* extension,
     const extensions::Command& command) {
   browser_actions_->ExecuteExtensionCommand(extension, command);
 }
 
+bool ToolbarView::IsExtensionCommandRegistered(
+    const ui::Accelerator& accelerator) {
+  return browser_actions_->IsExtensionCommandRegistered(accelerator);
+}
+
 void ToolbarView::ShowAppMenu(bool for_drop) {
   if (wrench_menu_.get() && wrench_menu_->IsShowing())
     return;
 
   if (keyboard::KeyboardController::GetInstance() &&
       keyboard::KeyboardController::GetInstance()->keyboard_visible()) {
     keyboard::KeyboardController::GetInstance()->HideKeyboard(
         keyboard::KeyboardController::HIDE_REASON_AUTOMATIC);
   }
 
@@ skipping 436 matching lines @@
 
 void ToolbarView::OnShowHomeButtonChanged() {
   Layout();
   SchedulePaint();
 }
 
 int ToolbarView::content_shadow_height() const {
   return browser_->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH ?
       kContentShadowHeightAsh : kContentShadowHeight;
 }