webkit: Check that delegate_ isn't NULL before trying to updateGeometry.

webkit/plugins/npapi/webplugin_impl.cc

 // 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 "webkit/plugins/npapi/webplugin_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
 #include "base/message_loop.h"
@@ skipping 329 matching lines @@
     // We invalidate windowed plugins during the first geometry update to
     // ensure that they get reparented to the wrapper window in the browser.
     // This ensures that they become visible and are painted by the OS. This is
     // required as some pages don't invalidate when the plugin is added.
     if (first_geometry_update_ && window_) {
       InvalidateRect(window_rect);
     }
   }
 
   // Only UpdateGeometry if either the window or clip rects have changed.
-  if (first_geometry_update_ ||
+  if (delegate_ && (first_geometry_update_ ||
       new_geometry.window_rect != geometry_.window_rect ||
-      new_geometry.clip_rect != geometry_.clip_rect) {
+      new_geometry.clip_rect != geometry_.clip_rect)) {
     // Notify the plugin that its parameters have changed.
     delegate_->UpdateGeometry(new_geometry.window_rect, new_geometry.clip_rect);
   }
 
   // Initiate a download on the plugin url. This should be done for the
   // first update geometry sequence. We need to ensure that the plugin
   // receives the geometry update before it starts receiving data.
   if (first_geometry_update_) {
     // An empty url corresponds to an EMBED tag with no src attribute.
     if (!load_manually_ && plugin_url_.is_valid()) {
@@ skipping 1072 matching lines @@
       webframe_->setReferrerForRequest(*request, plugin_url_);
       break;
 
     default:
       break;
   }
 }
 
 }  // namespace npapi
 }  // namespace webkit