Move P2P code to content namespace.

content/renderer/p2p/ipc_network_manager.h

Index: content/renderer/p2p/ipc_network_manager.h
diff --git a/content/renderer/p2p/ipc_network_manager.h b/content/renderer/p2p/ipc_network_manager.h
index f498cc7d3566508df4e466a7e5a47b6108cc5d1d..3fa17054b2354f19b911aaf529ec871b52281a10 100644
--- a/content/renderer/p2p/ipc_network_manager.h
+++ b/content/renderer/p2p/ipc_network_manager.h
@@ -13,6 +13,8 @@
 #include "net/base/net_util.h"
 #include "third_party/libjingle/source/talk/base/network.h"
 
+namespace content {
+
 // IpcNetworkManager is a NetworkManager for libjingle that gets a
 // list of network interfaces from the browser.
 class IpcNetworkManager : public talk_base::NetworkManagerBase,
@@ -40,4 +42,6 @@ class IpcNetworkManager : public talk_base::NetworkManagerBase,
   ScopedRunnableMethodFactory<IpcNetworkManager> task_factory_;
 };
 
+}  // namespace content
+
 #endif  // CONTENT_RENDERER_P2P_IPC_NETWORK_MANAGER_H_