Remove the JNI-based InterfaceRegistry.

content/browser/mojo/interface_registrar_android.h

-// 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 CONTENT_BROWSER_MOJO_INTERFACE_REGISTRAR_ANDROID_H_
-#define CONTENT_BROWSER_MOJO_INTERFACE_REGISTRAR_ANDROID_H_
-
-#include <jni.h>
-
-namespace content {
-
-class InterfaceRegistryAndroid;
-class RenderFrameHost;
-
-// Registrar for interfaces implemented in Java exposed by the browser. This
-// calls into Java where the services are registered with the indicated
-// registry.
-class InterfaceRegistrarAndroid {
- public:
-  static void ExposeInterfacesToRenderer(InterfaceRegistryAndroid* registry);
-  static void ExposeInterfacesToFrame(InterfaceRegistryAndroid* registry,
-      RenderFrameHost* frame);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_MOJO_INTERFACE_REGISTRAR_ANDROID_H_