Bug 1139005 - Need to check the return value of AutoJSAPI.init in canvas EncodeCallback (r=ayang)

2015-03-02 22:26:06 -08:00
parent f932cd6e3b
commit f02961254a
1 changed files with 3 additions and 2 deletions
--- a/dom/html/HTMLCanvasElement.cpp
+++ b/dom/html/HTMLCanvasElement.cpp
@@ -561,8 +561,9 @@ HTMLCanvasElement::ToBlob(JSContext* aCx,
      nsresult rv = blob->GetSize(&size);
      if (NS_SUCCEEDED(rv)) {
        AutoJSAPI jsapi;
-        jsapi.Init(mGlobal);
-        JS_updateMallocCounter(jsapi.cx(), size);
+        if (jsapi.Init(mGlobal)) {
+          JS_updateMallocCounter(jsapi.cx(), size);
+        }
      }

      nsRefPtr<File> newBlob = new File(mGlobal, blob->Impl());