Add missing using statements for JNI types.

blimp/client/app/android/blimp_library_loader.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 "blimp/client/app/android/blimp_library_loader.h"
 
 #include <vector>
 
 #include "base/android/base_jni_onload.h"
 #include "base/android/base_jni_registrar.h"
 #include "base/android/jni_android.h"
 #include "base/android/library_loader/library_loader_hooks.h"
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "blimp/client/app/android/blimp_app_jni_registrar.h"
 #include "blimp/client/app/blimp_startup.h"
 #include "blimp/client/public/android/blimp_jni_registrar.h"
 #include "jni/BlimpLibraryLoader_jni.h"
 #include "net/android/net_jni_registrar.h"
 #include "ui/gl/gl_surface.h"
 
+using base::android::JavaParamRef;
+
 namespace {
 
 bool OnLibrariesLoaded(JNIEnv* env, jclass clazz) {
   blimp::client::InitializeLogging();
   return true;
 }
 
 bool OnJniInitializationComplete() {
   base::android::SetLibraryLoadedHook(&OnLibrariesLoaded);
   return true;
@@ skipping 46 matching lines @@
   // Although we only need to register JNI for base/ and blimp/, this follows
   // the general Chrome for Android pattern, to be future-proof against future
   // changes to JNI.
   if (!base::android::OnJNIOnLoadRegisterJNI(vm, register_callbacks) ||
       !base::android::OnJNIOnLoadInit(init_callbacks)) {
     return -1;
   }
 
   return JNI_VERSION_1_4;
 }