Add missing using statements for JNI types.

chrome/browser/supervised_user/child_accounts/child_account_feedback_reporter_android.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 "chrome/browser/supervised_user/child_accounts/child_account_feedback_reporter_android.h"
 
 #include "base/android/jni_string.h"
 #include "chrome/browser/ui/android/view_android_helper.h"
 #include "content/public/browser/web_contents.h"
 #include "jni/ChildAccountFeedbackReporter_jni.h"
 #include "ui/android/view_android.h"
 #include "ui/android/window_android.h"
 #include "url/gurl.h"
 
+using base::android::ScopedJavaLocalRef;
+
 void ReportChildAccountFeedback(content::WebContents* web_contents,
                                 const std::string& description,
                                 const GURL& url) {
   JNIEnv* env = base::android::AttachCurrentThread();
 
   ViewAndroidHelper* helper =
       content::WebContentsUserData<ViewAndroidHelper>::FromWebContents(
           web_contents);
   ui::WindowAndroid* window = helper->GetViewAndroid()->GetWindowAndroid();
 
   ScopedJavaLocalRef<jstring> jdesc =
       base::android::ConvertUTF8ToJavaString(env, description);
   ScopedJavaLocalRef<jstring> jurl =
       base::android::ConvertUTF8ToJavaString(env, url.spec());
   Java_ChildAccountFeedbackReporter_reportFeedbackWithWindow(
       env, window->GetJavaObject().obj(), jdesc.obj(), jurl.obj());
 }