Add initial Blink-side support for the Screen Orientation API

Source/modules/screen_orientation/testing/InternalsScreenOrientation.h

Index: Source/modules/screen_orientation/testing/InternalsScreenOrientation.h
diff --git a/Source/modules/screen_orientation/testing/InternalsScreenOrientation.h b/Source/modules/screen_orientation/testing/InternalsScreenOrientation.h
new file mode 100644
index 0000000000000000000000000000000000000000..9bf2d6941e131ff06b4514f01f37bb3c69fd5d3d
--- /dev/null
+++ b/Source/modules/screen_orientation/testing/InternalsScreenOrientation.h
@@ -0,0 +1,27 @@
+// 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.
+
+#ifndef InternalsScreenOrientation_h
+#define InternalsScreenOrientation_h
+
+#include "wtf/Forward.h"
+
+namespace WebCore {
+
+class Document;
+class Internals;
+class ScreenOrientationClientMock;
+
+class InternalsScreenOrientation {
+public:
+    static void setScreenOrientationClientMock(Internals*, Document*);
+    static void setScreenOrientation(Internals*, Document*, const AtomicString& orientation);
+
+private:
+    static ScreenOrientationClientMock* screenOrientationClient(Document*);
+};
+
+} // namespace WebCore.
+
+#endif // InternalsScreenOrientation_h