Add proxies for some of the PDF & Flash functionality. There are still a few
unimplemented parts in the Flash proxy, and I only implemented the necessary
part of the PDF one.

TEST=none
BUG=none
Review URL: http://codereview.chromium.org/4752008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65951 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/ipc/ipc_message_utils.h b/ipc/ipc_message_utils.h
index 7c6018f..7d8cf4f3 100644
--- a/ipc/ipc_message_utils.h
+++ b/ipc/ipc_message_utils.h
@@ -241,6 +241,14 @@
   static void Log(const param_type& p, std::string* l);
 };
 
+template <>
+struct ParamTraits<unsigned short> {
+  typedef unsigned short param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
 // Note that the IPC layer doesn't sanitize NaNs and +/- INF values.  Clients
 // should be sure to check the sanity of these values after receiving them over
 // IPC.