Revert of [Media Router] Remove binary messaging implementation.

chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CastMediaRouteProvider.java

Index: chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CastMediaRouteProvider.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CastMediaRouteProvider.java b/chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CastMediaRouteProvider.java
index 211afd2abe62ee8d4ff38b4454ab578407580258..e687e5ba06f91b161359b5fe1c52e4eed80ac72c 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CastMediaRouteProvider.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CastMediaRouteProvider.java
@@ -376,6 +376,15 @@
         mManager.onMessageSentResult(success, nativeCallbackId);
     }
 
+    @Override
+    public void sendBinaryMessage(String routeId, byte[] data, int nativeCallbackId) {
+        // TODO(crbug.com/524128): Cast API does not support sending binary message
+        // to receiver application. Binary data may be converted to String and send as
+        // an app_message within it's own message namespace, using the string version.
+        // Sending failure in the result callback for now.
+        mManager.onMessageSentResult(false, nativeCallbackId);
+    }
+
     private boolean handleClientConnectMessage(JSONObject jsonMessage) throws JSONException {
         String clientId = jsonMessage.getString("clientId");
         if (clientId == null) return false;