[PresentationAPI, Android] Add ChromeMediaRouter.java and bind it with the native MediaRouterAndroid

chrome/android/java/src/org/chromium/chrome/browser/media/router/ChromeMediaRouter.java

Index: chrome/android/java/src/org/chromium/chrome/browser/media/router/ChromeMediaRouter.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/media/router/ChromeMediaRouter.java b/chrome/android/java/src/org/chromium/chrome/browser/media/router/ChromeMediaRouter.java
new file mode 100644
index 0000000000000000000000000000000000000000..9a87ef7e9667f5d773f87e1f2870198a40385814
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/media/router/ChromeMediaRouter.java
@@ -0,0 +1,32 @@
+// Copyright 2015 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.chrome.browser.media.router;
+
+import android.content.Context;
+
+import org.chromium.base.annotations.CalledByNative;
+import org.chromium.base.annotations.JNINamespace;
+
+/**
+ * Implements the JNI interface called from the C++ Media Router implementation on Android.
+ */
+@JNINamespace("media_router")
+public class ChromeMediaRouter {
+    private static final String TAG = "cr.MediaRouter";
+
+    private final long mNativeMediaRouter;
+
+    /**
+     * Initializes the media router and its providers.
+     */
+    @CalledByNative
+    public static ChromeMediaRouter create(long nativeMediaRouter, Context context) {
+        return new ChromeMediaRouter(nativeMediaRouter, context);
+    }
+
+    private ChromeMediaRouter(long nativeMediaRouter, Context context) {
+        mNativeMediaRouter = nativeMediaRouter;
+    }
+}