Revert of [Media Router] Remove binary messaging implementation.

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
index a4e96c4da74363269c4981d97656b72dc3bee6f7..9236349266cbd2af670f208acdfa62439eaae286 100644
--- 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
@@ -325,6 +325,23 @@
         }
 
         provider.sendStringMessage(routeId, message, callbackId);
+    }
+
+    /**
+     * Sends a binary message to the specified route.
+     * @param routeId The id of the route to send the message to.
+     * @param data The binary message to send.
+     * @param callbackId The id of the result callback tracked by the native side.
+     */
+    @CalledByNative
+    public void sendBinaryMessage(String routeId, byte[] data, int callbackId) {
+        MediaRouteProvider provider = mRouteIdsToProviders.get(routeId);
+        if (provider == null) {
+            nativeOnMessageSentResult(mNativeMediaRouterAndroid, false, callbackId);
+            return;
+        }
+
+        provider.sendBinaryMessage(routeId, data, callbackId);
     }
 
     @VisibleForTesting