Added PlatformHandle thunks.

shell/native_application_support.cc

Index: shell/native_application_support.cc
diff --git a/shell/native_application_support.cc b/shell/native_application_support.cc
index ce171dcbefe9a9e3961a645ac9ac9ebcba1a396f..bb45de0f57046f94ec86f425a53735cc64c34df4 100644
--- a/shell/native_application_support.cc
+++ b/shell/native_application_support.cc
@@ -7,6 +7,7 @@
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
+#include "mojo/platform_handle/platform_handle_private_thunks.h"
 #include "mojo/public/platform/native/gles2_impl_chromium_bind_uniform_location_thunks.h"
 #include "mojo/public/platform/native/gles2_impl_chromium_map_sub_thunks.h"
 #include "mojo/public/platform/native/gles2_impl_chromium_miscellaneous_thunks.h"
@@ -74,6 +75,9 @@ bool RunNativeApplication(
     return false;
   }
 
+  SetThunks(&MojoMakePlatformHandlePrivateThunks,
+            "MojoSetPlatformHandlePrivateThunks", app_library);
+
   // TODO(ncbray): enforce the private nature of this API, somehow?
   SetThunks(&MojoMakeSystemImplControlThunksPrivate,
             "MojoSetSystemImplControlThunksPrivate", app_library);