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

ui/gfx/ipc/geometry/gfx_param_traits.h

Index: ui/gfx/ipc/geometry/gfx_param_traits.h
diff --git a/ui/gfx/ipc/geometry/gfx_param_traits.h b/ui/gfx/ipc/geometry/gfx_param_traits.h
index 500048e6c77703a2ef85ce6ed65f0264c0410816..eda8790eb3703886673424928fde2f4fa3bfcd06 100644
--- a/ui/gfx/ipc/geometry/gfx_param_traits.h
+++ b/ui/gfx/ipc/geometry/gfx_param_traits.h
@@ -29,6 +29,7 @@ namespace IPC {
 template <>
 struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Point> {
   typedef gfx::Point 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,
@@ -50,6 +51,7 @@ struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::PointF> {
 template <>
 struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Point3F> {
   typedef gfx::Point3F 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,
@@ -60,6 +62,7 @@ struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Point3F> {
 template <>
 struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Size> {
   typedef gfx::Size 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,
@@ -70,6 +73,7 @@ struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Size> {
 template <>
 struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::SizeF> {
   typedef gfx::SizeF 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,
@@ -91,6 +95,7 @@ struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Vector2d> {
 template <>
 struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Vector2dF> {
   typedef gfx::Vector2dF 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,
@@ -101,6 +106,7 @@ struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Vector2dF> {
 template <>
 struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::Rect> {
   typedef gfx::Rect 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,
@@ -122,6 +128,7 @@ struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::RectF> {
 template <>
 struct GFX_IPC_GEOMETRY_EXPORT ParamTraits<gfx::ScrollOffset> {
   typedef gfx::ScrollOffset 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,