Update clipboard classes to use string16 and FilePath instead of wstring....

chrome/common/ipc_message_utils.h

Index: chrome/common/ipc_message_utils.h
===================================================================
--- chrome/common/ipc_message_utils.h	(revision 10811)
+++ chrome/common/ipc_message_utils.h	(working copy)
@@ -690,6 +690,20 @@
   }
 };
 
+template <>
+struct ParamTraits<string16> {
+  typedef string16 param_type;
+  static void Write(Message* m, const param_type& p) {
+    m->WriteString16(p);
+  }
+  static bool Read(const Message* m, void** iter, param_type* r) {
+    return m->ReadString16(iter, r);
+  }
+  static void Log(const param_type& p, std::wstring* l) {
+    l->append(UTF16ToWide(p));
+  }
+};
+
 #endif // defined(OS_POSIX)
 
 template<>