Fix PepperPortAllocator to resolve STUN addresses using HostResolverPrivate.

remoting/client/plugin/pepper_util.h

Index: remoting/client/plugin/pepper_util.h
diff --git a/remoting/client/plugin/pepper_util.h b/remoting/client/plugin/pepper_util.h
index 80ab630b6611e2a2805601455645db7a796159da..b106b2f4eab55145a86fcec35ffd35ac4a4d409f 100644
--- a/remoting/client/plugin/pepper_util.h
+++ b/remoting/client/plugin/pepper_util.h
@@ -10,6 +10,12 @@
 
 #include "ppapi/cpp/completion_callback.h"
 
+struct PP_NetAddress_Private;
+
+namespace talk_base {
+class SocketAddress;
+}  // namespace talk_base
+
 namespace remoting {
 
 // Adapts a base::Callback to a pp::CompletionCallback, which may be passed to
@@ -17,6 +23,15 @@ namespace remoting {
 // |callback| will be leaked, including references & passed values bound to it.
 pp::CompletionCallback PpCompletionCallback(base::Callback<void(int)> callback);
 
+// Helpers to convert between different socket address representations.
+bool SocketAddressToPpAddressWithPort(const talk_base::SocketAddress& address,
+                                      PP_NetAddress_Private* pp_address,
+                                      uint16_t port);
+bool SocketAddressToPpAddress(const talk_base::SocketAddress& address,
+                              PP_NetAddress_Private* pp_address);
+bool PpAddressToSocketAddress(const PP_NetAddress_Private& pp_address,
+                              talk_base::SocketAddress* address);
+
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_PLUGIN_UTIL_H_