Bug 1829053 - Enable graphite malloc wrapping in the wasm sandbox. r=shravanrn

Differential Revision: https://phabricator.services.mozilla.com/D175982

gfx/graphite2/src/moz.build

@@ -33,7 +33,3 @@ for k, v in graphite_defines:
 AllowCompilerWarnings()
 
 FINAL_LIBRARY = 'gkmedias'
-
-# provide a custom header that overrides malloc() and friends,
-# to ensure safe OOM handling. Don't do this in the wasm sandbox.
-DEFINES['GRAPHITE2_CUSTOM_HEADER'] = '"MozGrMalloc.h"'

gfx/graphite2/src/sources.mozbuild

@@ -44,6 +44,9 @@ graphite_defines = [
     # tell graphite2 not to export symbols, we'll be linking it directly with
     # thebes
     ('GRAPHITE2_STATIC', True),
+    # provide a custom header that overrides malloc() and friends,
+    # to ensure safe OOM handling.
+    ('GRAPHITE2_CUSTOM_HEADER', '"MozGrMalloc.h"'),
 ]
 
 # disable features we don't need in the graphite2 code, to reduce code size