Using ResourceRequestBody as the type of HTTP body outside of //content.

components/service_tab_launcher/browser/android/service_tab_launcher.cc

 // 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.
 
 #include "components/service_tab_launcher/browser/android/service_tab_launcher.h"
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_string.h"
 #include "base/callback.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 50 matching lines @@
   }
 
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jstring> url = ConvertUTF8ToJavaString(
       env, params.url.spec());
   ScopedJavaLocalRef<jstring> referrer_url =
       ConvertUTF8ToJavaString(env, params.referrer.url.spec());
   ScopedJavaLocalRef<jstring> headers = ConvertUTF8ToJavaString(
       env, params.extra_headers);
 
-  ScopedJavaLocalRef<jbyteArray> post_data;
+  ScopedJavaLocalRef<jobject> post_data;
 
   int request_id = tab_launched_callbacks_.Add(
       new TabLaunchedCallback(callback));
   DCHECK_GE(request_id, 1);
 
   Java_ServiceTabLauncher_launchTab(env,
                                     java_object_.obj(),
                                     GetApplicationContext(),
                                     request_id,
                                     browser_context->IsOffTheRecord(),
@@ skipping 14 matching lines @@
     callback->Run(web_contents);
 
   tab_launched_callbacks_.Remove(request_id);
 }
 
 bool ServiceTabLauncher::RegisterServiceTabLauncher(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace service_tab_launcher