Merge remote-tracking branch 'origin/tracking' into custom

dom/webidl/VisualViewport.webidl

@@ -0,0 +1,21 @@
+/* -*- 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/.
+ *
+ * The origin of this IDL file is:
+ * https://wicg.github.io/visual-viewport/#the-visualviewport-interface
+ */
+
+interface VisualViewport : EventTarget {
+  readonly attribute double offsetLeft;
+  readonly attribute double offsetTop;
+
+  readonly attribute double pageLeft;
+  readonly attribute double pageTop;
+
+  readonly attribute double width;
+  readonly attribute double height;
+
+  readonly attribute double scale;
+};

dom/webidl/Window.webidl

@@ -15,6 +15,7 @@
  * http://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html
  * https://w3c.github.io/webappsec-secure-contexts/#monkey-patching-global-object
  * https://w3c.github.io/requestidlecallback/
+ * https://wicg.github.io/visual-viewport/#the-visualviewport-interface
  */
 
 interface ApplicationCache;
@@ -492,3 +493,8 @@ partial interface Window {
 dictionary WindowPostMessageOptions : StructuredSerializeOptions {
   USVString targetOrigin = "/";
 };
+
+partial interface Window {
+  [SameObject, Pref="dom.visualviewport.enabled", Replaceable]
+  readonly attribute VisualViewport visualViewport;
+};

dom/webidl/moz.build

@@ -565,6 +565,7 @@ WEBIDL_FILES = [
     'VideoStreamTrack.webidl',
     'VideoTrack.webidl',
     'VideoTrackList.webidl',
+    'VisualViewport.webidl',
     'VTTCue.webidl',
     'VTTRegion.webidl',
     'WaveShaperNode.webidl',