DO NOT COMMIT - DialogSurface initial implementation.

media/base/android/java/src/org/chromium/media/IDialogSurfaceManager.aidl

+// 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.
+
+package org.chromium.media;
+
+import org.chromium.media.IDialogSurfaceCallback;
+import org.chromium.media.IDialogSurfaceController;
+
+interface IDialogSurfaceManager {
+    /**
+     * Create a DialogSurfaceController with the given parameters.  Once
+     * created, you must wait for a callback telling you that the surface is
+     * ready for use.
+     *
+     * @param callback object to receive callbacks about the surface.
+     * @param x Initial position in compositor (not screen) coordinates.
+     * @param y Initial position in compositor (not screen) coordinates.
+     * @param width Initial width in pixels.
+     * @param height Initial height in pixels.
+     */
+    IDialogSurfaceController createSurface(IDialogSurfaceCallback callback, int x, int y, int width, int height);
+}