Don't depend on the embedder creating a plugin. That way embedders can always provide an empty Co...

content/renderer/render_view.cc

 // 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 "content/renderer/render_view.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 1951 matching lines @@
   if (RenderThread::current())  // Will be NULL during unit tests.
     RenderThread::current()->DoNotSuspendWebKitSharedTimer();
 
   SendAndRunNestedMessageLoop(new ViewHostMsg_RunModal(routing_id_));
 }
 
 // WebKit::WebFrameClient -----------------------------------------------------
 
 WebPlugin* RenderView::createPlugin(WebFrame* frame,
                                     const WebPluginParams& params) {
-  return content::GetContentClient()->renderer()->CreatePlugin(
-      this, frame, params);
+  WebPlugin* plugin = NULL;
+  if (content::GetContentClient()->renderer()->OverrideCreatePlugin(
+          this, frame, params, &plugin)) {
+    return plugin;
+  }
+
+  return CreatePluginNoCheck(frame, params);
 }
 
 WebWorker* RenderView::createWorker(WebFrame* frame, WebWorkerClient* client) {
   WebApplicationCacheHostImpl* appcache_host =
       WebApplicationCacheHostImpl::FromFrame(frame);
   int appcache_host_id = appcache_host ? appcache_host->host_id() : 0;
   return new WebWorkerProxy(client, RenderThread::current(), routing_id_,
                             appcache_host_id);
 }
 
@@ skipping 2660 matching lines @@
 }
 
 void RenderView::OnLockMouseACK(bool succeeded) {
   pepper_delegate_.OnLockMouseACK(succeeded);
 }
 
 void RenderView::OnMouseLockLost() {
   pepper_delegate_.OnMouseLockLost();
 }