[screen-orientation] Expose orientation info in OrientationInformation interface.

Source/modules/screen_orientation/OrientationInformation.idl

Index: Source/modules/screen_orientation/OrientationInformation.idl
diff --git a/Source/modules/screen_orientation/OrientationInformation.idl b/Source/modules/screen_orientation/OrientationInformation.idl
new file mode 100644
index 0000000000000000000000000000000000000000..622010fe6e974e4db8841c7d5f0d747a671b62fe
--- /dev/null
+++ b/Source/modules/screen_orientation/OrientationInformation.idl
@@ -0,0 +1,18 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+enum OrientationType {
+    "portrait-primary",
+    "portrait-secondary",
+    "landscape-primary",
+    "landscape-secondary"
+};
+
+[
+    GarbageCollected,
+    RuntimeEnabled=ScreenOrientation
+] interface OrientationInformation {
+    readonly attribute OrientationType type;
+    readonly attribute unsigned short angle;
+};