Restore old title in WebViewPlugin only when loading the plugin.

BUG=72437
TEST=see bug for manual test

Review URL: http://codereview.chromium.org/6476006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@74428 0039d316-1c4b-4281-b951-d872f2087c98
void BlockedPlugin::LoadPlugin() {
  CHECK(plugin_);
  if (hidden_)
    return;
  WebPluginContainer* container = plugin_->container();
   WebPlugin* new_plugin =
       render_view()->CreatePluginNoCheck(frame_, plugin_params_);
   if (new_plugin && new_plugin->initialize(container)) {
    plugin_->RestoreTitleText();
     container->setPlugin(new_plugin);
     container->invalidate();
     container->reportGeometry();
    plugin_->ReplayReceivedData(new_plugin);
    plugin_->destroy();
  }
}

void BlockedPlugin::LoadPlugin() {
  CHECK(plugin_);
  if (hidden_)
    return;
  WebPluginContainer* container = plugin_->container();
   WebPlugin* new_plugin =
       render_view()->CreatePluginNoCheck(frame_, plugin_params_);
   if (new_plugin && new_plugin->initialize(container)) {
     container->setPlugin(new_plugin);
     container->invalidate();
     container->reportGeometry();
    plugin_->ReplayReceivedData(new_plugin);
    plugin_->destroy();
  }
}
