Revert of Track the active ExtensionKeybindingRegistry and make it available to EventRewriter.

chrome/browser/extensions/extension_commands_global_registry.h

Index: chrome/browser/extensions/extension_commands_global_registry.h
diff --git a/chrome/browser/extensions/extension_commands_global_registry.h b/chrome/browser/extensions/extension_commands_global_registry.h
index c27f75c7007a967a93fe228a67b4867895e81755..92a7a8e42b4073ab50a7802fea22dc99b01f798e 100644
--- a/chrome/browser/extensions/extension_commands_global_registry.h
+++ b/chrome/browser/extensions/extension_commands_global_registry.h
@@ -47,20 +47,6 @@
   explicit ExtensionCommandsGlobalRegistry(content::BrowserContext* context);
   virtual ~ExtensionCommandsGlobalRegistry();
 
-  // Returns which non-global command registry is active (belonging to the
-  // currently active window).
-  ExtensionKeybindingRegistry* registry_for_active_window() {
-    return registry_for_active_window_;
-  }
-
-  void set_registry_for_active_window(ExtensionKeybindingRegistry* registry) {
-    registry_for_active_window_ = registry;
-  }
-
-  // Returns whether |accelerator| is registered on the registry for the active
-  // window or on the global registry.
-  bool IsRegistered(const ui::Accelerator& accelerator);
-
  private:
   friend class BrowserContextKeyedAPIFactory<ExtensionCommandsGlobalRegistry>;
 
@@ -84,13 +70,6 @@
   // Weak pointer to our browser context. Not owned by us.
   content::BrowserContext* browser_context_;
 
-  // The global commands registry not only keeps track of global commands
-  // registered, but also of which non-global command registry is active
-  // (belonging to the currently active window). Only valid for TOOLKIT_VIEWS
-  // and
-  // NULL otherwise.
-  ExtensionKeybindingRegistry* registry_for_active_window_;
-
   DISALLOW_COPY_AND_ASSIGN(ExtensionCommandsGlobalRegistry);
 };