Fix regression with extension popup bubbles on Mac.

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

 // Copyright (c) 2011 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/cocoa/extensions/extension_view_mac.h"
 
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/tab_contents/tab_contents_view_mac.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_widget_host_view.h"
@@ skipping 39 matching lines @@
     render_view_host()->view()->SetBackground(background);
   } else {
     pending_background_ = background;
   }
   ShowIfCompletelyLoaded();
 }
 
 void ExtensionViewMac::UpdatePreferredSize(const gfx::Size& new_size) {
   // When we update the size, our container becomes visible. Stay hidden until
   // the host is loaded.
-  if (!extension_host_->did_stop_loading()) {
-    pending_preferred_size_ = new_size;
+  pending_preferred_size_ = new_size;
+  if (!extension_host_->did_stop_loading())
     return;
-  }
 
   // No need to use CA here, our caller calls us repeatedly to animate the
   // resizing.
   NSView* view = native_view();
   NSRect frame = [view frame];
   frame.size.width = new_size.width();
   frame.size.height = new_size.height();
 
   // |new_size| is in pixels. Convert to view units.
   frame.size = [view convertSize:frame.size fromView:nil];
@@ skipping 41 matching lines @@
 }
 
 void ExtensionViewMac::ShowIfCompletelyLoaded() {
   // We wait to show the ExtensionView until it has loaded, and the view has
   // actually been created. These can happen in different orders.
   if (extension_host_->did_stop_loading()) {
     [native_view() setHidden:NO];
     UpdatePreferredSize(pending_preferred_size_);
   }
 }