Add missing using statements for JNI types.

chrome/browser/media/android/remote/record_cast_action.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 "chrome/browser/media/android/remote/record_cast_action.h"
 
 #include <jni.h>
 
 #include "base/metrics/histogram.h"
 #include "content/public/browser/user_metrics.h"
 #include "jni/RecordCastAction_jni.h"
 #include "media/base/container_names.h"
 
 using base::UserMetricsAction;
+using base::android::JavaParamRef;
 using content::RecordAction;
 
 namespace {
 
 // When updating these values, remember to also update
 // tools/histograms/histograms.xml.
 enum CastPlayBackState {
   YT_PLAYER_SUCCESS = 0,
   YT_PLAYER_FAILURE = 1,
   DEFAULT_PLAYER_SUCCESS = 2,
@@ skipping 77 matching lines @@
   UMA_HISTOGRAM_ENUMERATION("Cast.Sender.CastTimeRemainingPercentage",
       percent_remaining, 101);
 }
 
 // Register native methods
 bool RegisterRecordCastAction(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace remote_media