Make repost form warning tab-modal on Mac.

chrome/browser/cocoa/toolbar_controller.mm

 // Copyright (c) 2010 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/cocoa/toolbar_controller.h"
 
 #include <algorithm>
 
 #include "app/l10n_util_mac.h"
 #include "base/mac_util.h"
@@ skipping 351 matching lines @@
 // corresponding UI element.
 - (void)enabledStateChangedForCommand:(NSInteger)command enabled:(BOOL)enabled {
   NSButton* button = nil;
   switch (command) {
     case IDC_BACK:
       button = backButton_;
       break;
     case IDC_FORWARD:
       button = forwardButton_;
       break;
+    case IDC_RELOAD:
+      button = reloadButton_;
+      break;
     case IDC_HOME:
       button = homeButton_;
       break;
     case IDC_BOOKMARK_PAGE:
       button = starButton_;
       break;
   }
   [button setEnabled:enabled];
 }
 
@@ skipping 457 matching lines @@
 - (void)indicateDropURLsInView:(NSView*)view at:(NSPoint)point {
   // Do nothing.
 }
 
 // (URLDropTargetController protocol)
 - (void)hideDropURLsIndicatorInView:(NSView*)view {
   // Do nothing.
 }
 
 @end