DO NOT COMMIT - DialogSurface initial implementation.

media/base/android/java/src/org/chromium/media/DialogSurfaceCallback.java

+// 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.base.annotations.CalledByNative;
+import org.chromium.base.annotations.JNINamespace;
+
+/**
+ * Callback helper for native.  This works with our JNI implementation to hop
+ * to the right thread for callbacks, and handle async deletion of the native
+ * object.  It directly implemens the aidl interface also.
+ */
+@JNINamespace("media")
+class DialogSurfaceCallback extends IDialogSurfaceCallback.Stub {
+    private final long mNativeId;
+
+    public DialogSurfaceCallback(long nativeId) {
+        mNativeId = nativeId;
+    }
+
+    @CalledByNative
+    public static DialogSurfaceCallback create(long nativeId) {
+        return new DialogSurfaceCallback(nativeId);
+    }
+
+    @Override
+    public void onCallback(int what) {
+        nativeOnDialogSurfaceCallbackCallback(mNativeId, what);
+    }
+
+    private static native void nativeOnDialogSurfaceCallbackCallback(long id, int what);
+};