Replace IOSurfaceManager by directly passing IOSurface Mach ports over Chrome IPC.

ui/gfx/ipc/gfx_param_traits.h

Index: ui/gfx/ipc/gfx_param_traits.h
diff --git a/ui/gfx/ipc/gfx_param_traits.h b/ui/gfx/ipc/gfx_param_traits.h
index 337505a20ee7bf04dd251058831aed94eea8c54f..b7280ef0510ec4f0f026d215482e398530c796da 100644
--- a/ui/gfx/ipc/gfx_param_traits.h
+++ b/ui/gfx/ipc/gfx_param_traits.h
@@ -13,6 +13,10 @@
 #include "ui/gfx/ipc/gfx_ipc_export.h"
 #include "ui/gfx/ipc/gfx_param_traits_macros.h"
 
+#if defined(OS_MACOSX) && !defined(OS_IOS)
+#include "ui/gfx/mac/io_surface.h"
+#endif
+
 class SkBitmap;
 
 namespace gfx {
@@ -131,6 +135,20 @@ struct GFX_IPC_EXPORT ParamTraits<gfx::ScrollOffset> {
   static void Log(const param_type& p, std::string* l);
 };
 
+#if defined(OS_MACOSX) && !defined(OS_IOS)
+template <>
+struct GFX_IPC_EXPORT ParamTraits<gfx::ScopedRefCountedIOSurfaceMachPort> {
+  typedef gfx::ScopedRefCountedIOSurfaceMachPort param_type;
+  static void Write(Message* m, const param_type p);
+  // Note: Read() passes ownership of the Mach send right from the IPC message
+  // to the ScopedRefCountedIOSurfaceMachPort. Therefore, Read() may only be
+  // called once for a given message, otherwise the singular right will be
+  // managed and released by two objects.
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+#endif  // defined(OS_MACOSX) && !defined(OS_IOS)
+
 }  // namespace IPC
 
 #endif  // UI_GFX_IPC_GFX_PARAM_TRAITS_H_