Generate param traits size methods for IPC files in chrome/ (and traits it depends on).

ppapi/proxy/ppapi_param_traits.h

Index: ppapi/proxy/ppapi_param_traits.h
diff --git a/ppapi/proxy/ppapi_param_traits.h b/ppapi/proxy/ppapi_param_traits.h
index 69965470b01a17800d3462452094d68d23aa3725..75d4529f4caa87817af3aa567b12935d641fb5a3 100644
--- a/ppapi/proxy/ppapi_param_traits.h
+++ b/ppapi/proxy/ppapi_param_traits.h
@@ -49,6 +49,7 @@ namespace IPC {
 template<>
 struct PPAPI_PROXY_EXPORT ParamTraits<PP_Bool> {
   typedef PP_Bool param_type;
+  static void GetSize(base::PickleSizer* s, const param_type& p);
   static void Write(base::Pickle* m, const param_type& p);
   static bool Read(const base::Pickle* m,
                    base::PickleIterator* iter,
@@ -59,6 +60,7 @@ struct PPAPI_PROXY_EXPORT ParamTraits<PP_Bool> {
 template <>
 struct PPAPI_PROXY_EXPORT ParamTraits<PP_NetAddress_Private> {
   typedef PP_NetAddress_Private param_type;
+  static void GetSize(base::PickleSizer* s, const param_type& p);
   static void Write(base::Pickle* m, const param_type& p);
   static bool Read(const base::Pickle* m,
                    base::PickleIterator* iter,
@@ -142,6 +144,7 @@ struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::proxy::SerializedHandle> {
 template<>
 struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::HostResource> {
   typedef ppapi::HostResource param_type;
+  static void GetSize(base::PickleSizer* s, const param_type& p);
   static void Write(base::Pickle* m, const param_type& p);
   static bool Read(const base::Pickle* m,
                    base::PickleIterator* iter,
@@ -173,6 +176,7 @@ struct PPAPI_PROXY_EXPORT ParamTraits<
 template<>
 struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::PpapiPermissions> {
   typedef ppapi::PpapiPermissions param_type;
+  static void GetSize(base::PickleSizer* s, const param_type& p);
   static void Write(base::Pickle* m, const param_type& p);
   static bool Read(const base::Pickle* m,
                    base::PickleIterator* iter,
@@ -225,6 +229,7 @@ struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::SocketOptionData> {
 template<>
 struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::CompositorLayerData::Transform> {
   typedef ppapi::CompositorLayerData::Transform param_type;
+  static void GetSize(base::PickleSizer* s, const param_type& p);
   static void Write(base::Pickle* m, const param_type& p);
   static bool Read(const base::Pickle* m,
                    base::PickleIterator* iter,