Return created channels synchronously

android_webview/native/aw_contents.cc

Index: android_webview/native/aw_contents.cc
diff --git a/android_webview/native/aw_contents.cc b/android_webview/native/aw_contents.cc
index 28a715f08b80b0fc5762869a11a6fc171bdd2adc..0990fb7455c787f4b9ba4e1beb2b994f9326d720 100644
--- a/android_webview/native/aw_contents.cc
+++ b/android_webview/native/aw_contents.cc
@@ -1086,7 +1086,6 @@ void AwContents::PostMessageToFrame(JNIEnv* env, jobject obj,
                    base::Unretained(AwMessagePortServiceImpl::GetInstance()),
                    j_ports));
   }
-
   content::MessagePortProvider::PostMessageToFrame(web_contents_.get(),
                                                    j_source_origin,
                                                    j_target_origin,
@@ -1108,9 +1107,9 @@ AwContents::GetMessagePortMessageFilter() {
 }
 
 void AwContents::CreateMessageChannel(JNIEnv* env, jobject obj,
-    jobject callback) {
+    jobjectArray ports) {
 
-  AwMessagePortServiceImpl::GetInstance()->CreateMessageChannel(env, callback,
+  AwMessagePortServiceImpl::GetInstance()->CreateMessageChannel(env, ports,
       GetMessagePortMessageFilter());
 }