Add missing using statements for JNI types.

media/base/android/media_drm_bridge.cc

 // Copyright (c) 2013 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 "media/base/android/media_drm_bridge.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <utility>
 
@@ skipping 18 matching lines @@
 #include "media/base/android/media_codec_util.h"
 #include "media/base/android/media_drm_bridge_delegate.h"
 #include "media/base/android/provision_fetcher.h"
 #include "media/base/cdm_key_information.h"
 #include "widevine_cdm_version.h"  // In SHARED_INTERMEDIATE_DIR.
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertUTF8ToJavaString;
 using base::android::ConvertJavaStringToUTF8;
 using base::android::JavaByteArrayToByteVector;
+using base::android::JavaParamRef;
 using base::android::ScopedJavaGlobalRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace media {
 
 namespace {
 
 // These must be in sync with Android MediaDrm REQUEST_TYPE_XXX constants!
 // https://developer.android.com/reference/android/media/MediaDrm.KeyRequest.html
 enum class RequestType {
@@ skipping 849 matching lines @@
 }
 
 void MediaDrmBridge::OnHasAdditionalUsableKey() {
   DCHECK(task_runner_->BelongsToCurrentThread());
   DVLOG(1) << __FUNCTION__;
 
   player_tracker_.NotifyNewKey();
 }
 
 }  // namespace media