Add missing using statements for JNI types.

android_webview/native/permission/aw_permission_request.cc

 // Copyright 2014 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 "android_webview/native/permission/aw_permission_request.h"
 
 #include <utility>
 
 #include "android_webview/native/permission/aw_permission_request_delegate.h"
 #include "base/android/jni_string.h"
 #include "jni/AwPermissionRequest_jni.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertUTF8ToJavaString;
+using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace android_webview {
 
 // static
 base::android::ScopedJavaLocalRef<jobject> AwPermissionRequest::Create(
     std::unique_ptr<AwPermissionRequestDelegate> delegate,
     base::WeakPtr<AwPermissionRequest>* weak_ptr) {
   base::android::ScopedJavaLocalRef<jobject> java_peer;
   AwPermissionRequest* permission_request =
@@ skipping 61 matching lines @@
 void AwPermissionRequest::CancelAndDelete() {
   processed_ = true;
   DeleteThis();
 }
 
 bool RegisterAwPermissionRequest(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android_webivew