Add missing using statements for JNI types.

content/browser/android/content_video_view.cc

 // Copyright (c) 2012 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 "content/browser/android/content_video_view.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "content/browser/android/content_view_core_impl.h"
 #include "content/browser/media/android/browser_media_player_manager.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/common/content_switches.h"
 #include "jni/ContentVideoView_jni.h"
 
 using base::android::AttachCurrentThread;
 using base::android::CheckException;
+using base::android::JavaParamRef;
 using base::android::ScopedJavaGlobalRef;
+using base::android::ScopedJavaLocalRef;
 using base::UserMetricsAction;
 using content::RecordAction;
 
 namespace content {
 
 namespace {
 // There can only be one content video view at a time, this holds onto that
 // singleton instance.
 ContentVideoView* g_content_video_view = NULL;
 
@@ skipping 136 matching lines @@
     return JavaObjectWeakGlobalRef(env, nullptr);
 
   return JavaObjectWeakGlobalRef(
       env,
       Java_ContentVideoView_createContentVideoView(
           env,
           j_content_view_core.obj(),
           reinterpret_cast<intptr_t>(this)).obj());
 }
 }  // namespace content