Add missing using statements for JNI types.

content/browser/android/interstitial_page_delegate_android.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/interstitial_page_delegate_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "content/public/browser/interstitial_page.h"
 #include "jni/InterstitialPageDelegateAndroid_jni.h"
 
 using base::android::AttachCurrentThread;
+using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace content {
 
 InterstitialPageDelegateAndroid::InterstitialPageDelegateAndroid(
     JNIEnv* env,
     jobject obj,
     const std::string& html_content)
     : weak_java_obj_(env, obj),
       html_content_(html_content),
@@ skipping 66 matching lines @@
 static jlong Init(JNIEnv* env,
                   const JavaParamRef<jobject>& obj,
                   const JavaParamRef<jstring>& html_content) {
   InterstitialPageDelegateAndroid* delegate =
       new InterstitialPageDelegateAndroid(
           env, obj, base::android::ConvertJavaStringToUTF8(env, html_content));
   return reinterpret_cast<intptr_t>(delegate);
 }
 
 }  // namespace content