xulrunner 1.9.3: Use JS_NewGlobalObject if available

In 1.9.3, we need to explicitly say when we're making the global
object.  Clean this up by introducing a wrapper function; while
we're at it, also call JS_InitStandardClasses here since everything
else creating a global did too.

Note that rooting the global object is not necessary, so remove
that. From a grep of the sources (going back to at least 1.9.2):
./src/jsgc.cpp:    if (acx->globalObject && !JS_HAS_OPTION(acx, JSOPTION_UNROOTED_GLOBAL))
./src/jsgc.cpp:        JS_CALL_OBJECT_TRACER(trc, acx->globalObject, "global object");

1 files changed, 1 insertions, 0 deletions

diff --git a/gjs/jsapi-util.h b/gjs/jsapi-util.h
index 39b782af..78a0ca70 100644
--- a/gjs/jsapi-util.h
+++ b/gjs/jsapi-util.h
@@ -194,6 +194,7 @@ jsval cname##_create_proto(JSContext *context, JSObject *module, const char *pro
     return rval; \
 }
 
+gboolean    gjs_init_context_standard        (JSContext       *context);
 
 void*       gjs_runtime_get_data             (JSRuntime       *runtime,
                                                  const char      *name);