Make LoadMonitoringExtensionHostQueue remove itself as an ExtensionHost observer at the correct tim…

chrome/browser/ui/cocoa/extensions/extension_popup_controller.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/extensions/extension_popup_controller.h"
 
 #include <algorithm>
 
 #include "base/callback.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 363 matching lines @@
   // the notification is fired (and consequently the view contents have loaded).
   if (![window isVisible]) {
     [self showWindow:self];
   }
 }
 
 - (void)onSizeChanged:(NSSize)newSize {
   // When we update the size, the window will become visible. Stay hidden until
   // the host is loaded.
   pendingSize_ = newSize;
-  if (!host_ || !host_->did_stop_loading())
+  if (!host_ || !host_->has_loaded_once())
     return;
 
   // No need to use CA here, our caller calls us repeatedly to animate the
   // resizing.
   NSRect frame = [extensionView_ frame];
   frame.size = newSize;
 
   // |new_size| is in pixels. Convert to view units.
   frame.size = [extensionView_ convertSize:frame.size fromView:nil];
 
@@ skipping 37 matching lines @@
   return minSize;
 }
 
 // Private (TestingAPI)
 + (NSSize)maxPopupSize {
   NSSize maxSize = {ExtensionViewMac::kMaxWidth, ExtensionViewMac::kMaxHeight};
   return maxSize;
 }
 
 @end