Add initial Blink-side support for the Screen Orientation API

Source/modules/screen_orientation/testing/InternalsScreenOrientation.idl

Index: Source/modules/screen_orientation/testing/InternalsScreenOrientation.idl
diff --git a/Source/core/animation/Timeline.idl b/Source/modules/screen_orientation/testing/InternalsScreenOrientation.idl
similarity index 50%
copy from Source/core/animation/Timeline.idl
copy to Source/modules/screen_orientation/testing/InternalsScreenOrientation.idl
index 47138f768036aa66d960d3eac3207afebb624c6e..0cbc509905d1f382964fd8780590001ef57a84e0 100644
--- a/Source/core/animation/Timeline.idl
+++ b/Source/modules/screen_orientation/testing/InternalsScreenOrientation.idl
@@ -2,9 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-[
-    RuntimeEnabled=WebAnimationsAPI,
-    ImplementedAs=DocumentTimeline,
-] interface Timeline {
-    Player play(TimedItem source);
+partial interface Internals {
+    void setScreenOrientationClientMock(Document document);

[Peter Beverloo, 2014/02/13 16:33:42]

nit: createScreenOrientationClientMock would be a better name, but it's very
trivial.

[Inactive, 2014/02/13 17:03:24]

I chose this name for consistency with InternalsGeolocation.idl:
setGeolocationClientMock() 

+    void setScreenOrientation(Document document, DOMString orientation);
 };