Add missing using statements for JNI types.

blimp/client/core/contents/android/blimp_navigation_controller_impl_android.cc

 // Copyright 2016 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 "blimp/client/core/contents/android/blimp_navigation_controller_impl_android.h"
 
 #include <memory>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/ptr_util.h"
 #include "jni/BlimpNavigationControllerImpl_jni.h"
 
+using base::android::JavaParamRef;
+
 namespace blimp {
 namespace client {
 
 // static
 bool BlimpNavigationControllerImplAndroid::RegisterJni(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 // static
 BlimpNavigationControllerImplAndroid*
@@ skipping 61 matching lines @@
 }
 
 void BlimpNavigationControllerImplAndroid::Reload(
     JNIEnv* env,
     const JavaParamRef<jobject>& obj) {
   blimp_navigation_controller_impl_->Reload();
 }
 
 }  // namespace client
 }  // namespace blimp