1 files changed, 26 insertions, 0 deletions
diff --git a/image/test/browser/head.js b/image/test/browser/head.js
new file mode 100644
index 0000000000..020c8bd35f
--- /dev/null
+++ b/image/test/browser/head.js
@@ -0,0 +1,26 @@
+const RELATIVE_DIR = "image/test/browser/";
+const TESTROOT = "http://example.com/browser/" + RELATIVE_DIR;
+const TESTROOT2 = "http://example.org/browser/" + RELATIVE_DIR;
+
+var chrome_root = getRootDirectory(gTestPath);
+const CHROMEROOT = chrome_root;
+
+function getImageLoading(doc, id) {
+  return doc.getElementById(id);
+}
+
+// Tries to get the Moz debug image, imgIContainerDebug. Only works
+// in a debug build. If we succeed, we call func().
+function actOnMozImage(doc, id, func) {
+  var imgContainer = getImageLoading(doc, id).getRequest(
+    Ci.nsIImageLoadingContent.CURRENT_REQUEST
+  ).image;
+  var mozImage;
+  try {
+    mozImage = imgContainer.QueryInterface(Ci.imgIContainerDebug);
+  } catch (e) {
+    return false;
+  }
+  func(mozImage);
+  return true;
+}