1 files changed, 32 insertions, 0 deletions
diff --git a/dom/base/test/file_bug704320_preload_common.js b/dom/base/test/file_bug704320_preload_common.js
new file mode 100644
index 0000000000..c7a409e297
--- /dev/null
+++ b/dom/base/test/file_bug704320_preload_common.js
@@ -0,0 +1,32 @@
+// Common code for the iframes used by bug704320_preload.
+
+var loadCount = 0;
+
+// Called by the various onload handlers to indicate that a resource has
+// been fully loaded.  We require three loads to complete (img, script,
+// link) for this test.
+function incrementLoad(tag) {
+  loadCount++;
+  if (loadCount == 3) {
+    window.parent.postMessage("childLoadComplete", window.location.origin);
+  } else if (loadCount > 3) {
+    document.write("<h1>Too Many Load Events!</h1>");
+    window.parent.postMessage("childOverload", window.location.origin);
+  }
+}
+
+// This is same as incrementLoad, but the caller passes in the loadCount.
+function incrementLoad2(tag, expectedLoadCount) {
+  loadCount++;
+  if (loadCount == expectedLoadCount) {
+    window.parent.postMessage("childLoadComplete", window.location.origin);
+  } else if (loadCount > expectedLoadCount) {
+    document.write("<h1>Too Many Load Events!</h1>");
+    window.parent.postMessage("childOverload", window.location.origin);
+  }
+}
+
+// in case something fails to load, cause the test to fail.
+function postfail(msg) {
+  window.parent.postMessage("fail-" + msg, window.location.origin);
+}