Adds thunks for getting platform handles

mojo/runner/native_application_support.cc

Index: mojo/runner/native_application_support.cc
diff --git a/mojo/runner/native_application_support.cc b/mojo/runner/native_application_support.cc
index c4270da27bd95f2c86d8e900a4b637be070d38e3..0c5ba5b65db474b5dea9732f4e3cedc3fbb4a1e8 100644
--- a/mojo/runner/native_application_support.cc
+++ b/mojo/runner/native_application_support.cc
@@ -8,6 +8,7 @@
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
+#include "mojo/platform_handle/platform_handle_thunks.h"
 #include "mojo/public/platform/native/gles2_impl_chromium_miscellaneous_thunks.h"
 #include "mojo/public/platform/native/gles2_impl_chromium_sub_image_thunks.h"
 #include "mojo/public/platform/native/gles2_impl_chromium_sync_point_thunks.h"
@@ -126,6 +127,10 @@ bool RunNativeApplication(base::NativeLibrary app_library,
   }
 #endif
 
+  // Apps need not include platform handle thunks.
+  SetThunks(&MojoMakePlatformHandleThunks, "MojoSetPlatformHandleThunks",
+            app_library);
+
   typedef MojoResult (*MojoMainFunction)(MojoHandle);
   MojoMainFunction main_function = reinterpret_cast<MojoMainFunction>(
       base::GetFunctionPointerFromNativeLibrary(app_library, "MojoMain"));