1 files changed, 47 insertions, 0 deletions
diff --git a/dom/webidl/APZTestData.webidl b/dom/webidl/APZTestData.webidl
new file mode 100644
index 000000000..227f4b0b9
--- /dev/null
+++ b/dom/webidl/APZTestData.webidl
@@ -0,0 +1,47 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/*
+ * This file declares data structures used to communicate data logged by
+ * various components for the purpose of APZ testing (see bug 961289 and 
+ * gfx/layers/apz/test/APZTestData.h) to JS test code.
+ */
+
+// A single key-value pair in the data.
+dictionary ScrollFrameDataEntry {
+  DOMString key;
+  DOMString value;
+};
+
+// All the key-value pairs associated with a given scrollable frame.
+// The scrollable frame is identified by a scroll id.
+dictionary ScrollFrameData {
+  unsigned long long scrollId;
+  sequence<ScrollFrameDataEntry> entries;
+};
+
+// All the scrollable frames associated with a given paint or repaint request.
+// The paint or repaint request is identified by a sequence number.
+dictionary APZBucket {
+  unsigned long sequenceNumber;
+  sequence<ScrollFrameData> scrollFrames;
+};
+
+// All the paints and repaint requests. This is the top-level data structure.
+dictionary APZTestData {
+  sequence<APZBucket> paints;
+  sequence<APZBucket> repaintRequests;
+};
+
+// A frame uniformity measurement for every scrollable layer
+dictionary FrameUniformity {
+  unsigned long layerAddress;
+  float frameUniformity;
+};
+
+dictionary FrameUniformityResults {
+  sequence<FrameUniformity> layerUniformities;
+};