Track the active ExtensionKeybindingRegistry and make it available to EventRewriter.

chrome/browser/ui/views/toolbar/browser_actions_container.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_
 
 #include "base/observer_list.h"
 #include "chrome/browser/extensions/extension_keybinding_registry.h"
 #include "chrome/browser/extensions/extension_toolbar_model.h"
@@ skipping 230 matching lines @@
   virtual extensions::ActiveTabPermissionGranter*
       GetActiveTabPermissionGranter() OVERRIDE;
 
   // Retrieve the current popup.  This should only be used by unit tests.
   ExtensionPopup* TestGetPopup();
 
   // Set how many icons the container should show. This should only be used by
   // unit tests.
   void TestSetIconVisibilityCount(size_t icons);
 
+  // The class that registers for keyboard shortcuts for extension commands.
+  extensions::ExtensionKeybindingRegistry* GetExtensionKeybindingRegistry();

[Devlin, 2014/09/11 19:48:48]

This should go with the other simple accessors.  Normally, this would be at the
bottom (though above testing code), but in this class they're at the top.  So
this should go around line 155, and should also be named simply
"extension_keybinding_registry()" (and inlined here in the .h).

+
   // During testing we can disable animations by setting this flag to true,
   // so that the bar resizes instantly, instead of having to poll it while it
   // animates to open/closed status.
   static bool disable_animations_during_testing_;
 
  protected:
   // Overridden from views::View:
   virtual void ViewHierarchyChanged(
       const ViewHierarchyChangedDetails& details) OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
@@ skipping 156 matching lines @@
 
   // Handles delayed showing of the overflow menu when hovering.
   base::WeakPtrFactory<BrowserActionsContainer> show_menu_task_factory_;
 
   ObserverList<BrowserActionsContainerObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserActionsContainer);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_BROWSER_ACTIONS_CONTAINER_H_