Mojo-ify implementation of screen orientation locking/unlocking.

content/common/screen_orientation_service.mojom

Index: content/common/screen_orientation_service.mojom
diff --git a/content/common/screen_orientation_service.mojom b/content/common/screen_orientation_service.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..a2170856359fd33617c38aa66e67d8bdc7c3b184
--- /dev/null
+++ b/content/common/screen_orientation_service.mojom
@@ -0,0 +1,13 @@
+// Copyright 2016 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.
+
+module content.mojom;
+
+import "content/public/common/screen_orientation.mojom";
+
+interface ScreenOrientationService {

[Ken Rockot(use gerrit already), 2016/10/14 15:38:16]

naming nit: This is not a service, it's an interface. We can just call it
ScreenOrientation.

[lunalu1, 2016/10/20 23:28:47]

Done.

+  LockOrientation(ScreenOrientationLockType orientation) =>
+    (ScreenOrientationLockResult result);
+  UnlockOrientation();
+};