Revert 143656 - Add an IPC channel between the NaCl loader process and the renderer.
BUG=116317
TEST=ppapi, nacl tests, manual testing for experimental IPC proxy.
Review URL: https://chromiumcodereview.appspot.com/10641016

TBR=bbudge@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10625007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@143665 0039d316-1c4b-4281-b951-d872f2087c98
PluginInstance* PluginModule::CreateInstance(PluginDelegate* delegate) {
  PluginInstance* instance = PluginInstance::Create(delegate, this);
  if (!instance) {
    LOG(WARNING) << "Plugin doesn't support instance interface, failing.";
    return NULL;
  }
  if (out_of_process_proxy_.get())
    out_of_process_proxy_->AddInstance(instance->pp_instance());
  return instance;
}

PluginInstance* PluginModule::CreateInstance(PluginDelegate* delegate) {
  PluginInstance* instance = PluginInstance::Create(delegate, this);
  if (!instance) {
    LOG(WARNING) << "Plugin doesn't support instance interface, failing.";
    return NULL;
  }
  if (out_of_process_proxy_.get())
    out_of_process_proxy_->AddInstance(instance->pp_instance());
  return instance;
}
