NaCl: create a separate namespace for Mojo handles.

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 2cce52d84cb5b3c0b15e04d8bc9004eaa42f47bd..9a4eac99958014ab5baee1733c27f3d24dc07218 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/public/platform/native/core_system_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"
@@ -66,6 +67,9 @@ bool RunNativeApplication(base::NativeLibrary app_library,
     return false;
   }
 
+  // TODO(ncbray): make this interface private, somehow?
+  SetThunks(&MojoMakeCoreSystemThunks, "MojoSetCoreSystemThunks", app_library);
+
   if (SetThunks(&MojoMakeGLES2ControlThunks, "MojoSetGLES2ControlThunks",
                 app_library)) {
     // If we have the control thunks, we should also have the GLES2