Move P2P code to content namespace.

content/renderer/p2p/p2p_transport_impl.h

Index: content/renderer/p2p/p2p_transport_impl.h
diff --git a/content/renderer/p2p/p2p_transport_impl.h b/content/renderer/p2p/p2p_transport_impl.h
index 7675165e4b4a34eef7ca6f0bf9db95b0d5183b93..43be3bcad2bc9f376df980093b4d3a4fa27a15fc 100644
--- a/content/renderer/p2p/p2p_transport_impl.h
+++ b/content/renderer/p2p/p2p_transport_impl.h
@@ -13,8 +13,6 @@
 #include "third_party/libjingle/source/talk/base/sigslot.h"
 #include "webkit/glue/p2p_transport.h"
 
-class P2PSocketDispatcher;
-
 namespace cricket {
 class Candidate;
 class PortAllocator;
@@ -33,6 +31,10 @@ class NetworkManager;
 class PacketSocketFactory;
 }  // namespace talk_base
 
+namespace content {
+
+class P2PSocketDispatcher;
+
 class P2PTransportImpl : public webkit_glue::P2PTransport,
                          public sigslot::has_slots<> {
  public:
@@ -86,4 +88,6 @@ class P2PTransportImpl : public webkit_glue::P2PTransport,
   DISALLOW_COPY_AND_ASSIGN(P2PTransportImpl);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_RENDERER_P2P_P2P_TRANSPORT_IMPL_H_