[OSX] Don't create deferred windows.

chrome/browser/ui/cocoa/omnibox/omnibox_popup_view_mac.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.
 
 #include "chrome/browser/ui/cocoa/omnibox/omnibox_popup_view_mac.h"
 
 #include <cmath>
 
 #include "base/stl_util.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 179 matching lines @@
 const AutocompleteResult& OmniboxPopupViewMac::GetResult() const {
   return model_->result();
 }
 
 void OmniboxPopupViewMac::CreatePopupIfNeeded() {
   if (!popup_) {
     popup_.reset(
         [[NSWindow alloc] initWithContentRect:ui::kWindowSizeDeterminedLater
                                     styleMask:NSBorderlessWindowMask
                                       backing:NSBackingStoreBuffered
-                                        defer:YES]);
+                                        defer:NO]);
     [popup_ setBackgroundColor:[NSColor clearColor]];
     [popup_ setOpaque:NO];
 
     // Use a flipped view to pin the matrix top the top left. This is needed
     // for animated resize.
     base::scoped_nsobject<FlippedView> contentView(
         [[FlippedView alloc] initWithFrame:NSZeroRect]);
     [popup_ setContentView:contentView];
 
     // View to draw a background beneath the matrix.
@@ skipping 124 matching lines @@
 }
 
 void OmniboxPopupViewMac::OpenURLForRow(size_t row,
                                         WindowOpenDisposition disposition) {
   size_t start_match = model_->result().ShouldHideTopMatch() ? 1 : 0;
   row += start_match;
   DCHECK_LT(row, GetResult().size());
   omnibox_view_->OpenMatch(GetResult().match_at(row), disposition, GURL(),
                            base::string16(), row);
 }