Revert 170795

chrome/browser/ui/cocoa/constrained_window/constrained_window_mac2.h

Index: chrome/browser/ui/cocoa/constrained_window/constrained_window_mac2.h
===================================================================
--- chrome/browser/ui/cocoa/constrained_window/constrained_window_mac2.h	(revision 170901)
+++ chrome/browser/ui/cocoa/constrained_window/constrained_window_mac2.h	(working copy)
@@ -9,8 +9,6 @@
 
 #include "base/memory/scoped_nsobject.h"
 #include "chrome/browser/ui/constrained_window.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
 
 namespace content {
 class WebContents;
@@ -27,8 +25,7 @@
 // Constrained window implementation for Mac.
 // Normally an instance of this class is owned by the delegate. The delegate
 // should delete the instance when the window is closed.
-class ConstrainedWindowMac2 : public ConstrainedWindow,
-                              public content::NotificationObserver {
+class ConstrainedWindowMac2 : public ConstrainedWindow {
  public:
   ConstrainedWindowMac2(ConstrainedWindowMacDelegate2* delegate,
                         content::WebContents* web_contents,
@@ -43,11 +40,6 @@
   virtual gfx::NativeWindow GetNativeWindow() OVERRIDE;
   virtual bool CanShowConstrainedWindow() OVERRIDE;
 
-  // content::NotificationObserver:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
  private:
   // Gets the parent window of the dialog.
   NSWindow* GetParentWindow() const;
@@ -58,12 +50,6 @@
   content::WebContents* web_contents_;
 
   scoped_nsobject<NSWindow> window_;
-
-  // A scoped container for notification registries.
-  content::NotificationRegistrar registrar_;
-
-  // This is true if the constrained window is waiting to be shown.
-  bool pending_show_;
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_CONSTRAINED_WINDOW_CONSTRAINED_WINDOW_MAC_2_