Add missing using statements for JNI types.

chrome/browser/android/tab_state.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/android/tab_state.h"
 
 #include <jni.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 12 matching lines @@
 #include "components/sessions/content/content_serialized_navigation_builder.h"
 #include "components/sessions/core/serialized_navigation_entry.h"
 #include "components/sessions/core/session_command.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/web_contents.h"
 #include "jni/TabState_jni.h"
 
 using base::android::ConvertUTF16ToJavaString;
 using base::android::ConvertUTF8ToJavaString;
+using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 using content::NavigationController;
 using content::WebContents;
 
 namespace {
 
 bool WriteStateHeaderToPickle(bool off_the_record,
                               int entry_count,
                               int current_entry_index,
                               base::Pickle* pickle) {
@@ skipping 530 matching lines @@
       WebContentsState::RestoreContentsFromByteBuffer(env, clazz, state,
                                                       saved_state_version, true)
           .obj()));
   if (web_contents.get())
     TabAndroid::CreateHistoricalTabFromContents(web_contents.get());
 }
 
 bool RegisterTabState(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }