Move P2P code to content namespace.

content/renderer/pepper_plugin_delegate_impl.cc

Index: content/renderer/pepper_plugin_delegate_impl.cc
diff --git a/content/renderer/pepper_plugin_delegate_impl.cc b/content/renderer/pepper_plugin_delegate_impl.cc
index d7035b3e9e444a82b550a06de5fc8e764f97844b..ca358b28bb8b18db34929481f102c2a9c64da8ce 100644
--- a/content/renderer/pepper_plugin_delegate_impl.cc
+++ b/content/renderer/pepper_plugin_delegate_impl.cc
@@ -1429,13 +1429,14 @@ void PepperPluginDelegateImpl::SaveURLAs(const GURL& url) {
       render_view_->routing_id(), url));
 }
 
-P2PSocketDispatcher* PepperPluginDelegateImpl::GetP2PSocketDispatcher() {
+content::P2PSocketDispatcher*
+PepperPluginDelegateImpl::GetP2PSocketDispatcher() {
   return render_view_->p2p_socket_dispatcher();
 }
 
 webkit_glue::P2PTransport* PepperPluginDelegateImpl::CreateP2PTransport() {
 #if defined(ENABLE_P2P_APIS)
-  return new P2PTransportImpl(render_view_->p2p_socket_dispatcher());
+  return new content::P2PTransportImpl(render_view_->p2p_socket_dispatcher());
 #else
   return NULL;
 #endif