Add missing using statements for JNI types.

chrome/browser/android/find_in_page/find_in_page_bridge.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/find_in_page/find_in_page_bridge.h"
 
 #include "base/android/jni_string.h"
 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
 #include "content/public/browser/web_contents.h"
 #include "jni/FindInPageBridge_jni.h"
 
 using base::android::ConvertUTF16ToJavaString;
+using base::android::JavaParamRef;
+using base::android::ScopedJavaLocalRef;
 
 FindInPageBridge::FindInPageBridge(JNIEnv* env,
                                    jobject obj,
                                    jobject j_web_contents)
     : weak_java_ref_(env, obj) {
   web_contents_ = content::WebContents::FromJavaWebContents(j_web_contents);
 }
 
 void FindInPageBridge::Destroy(JNIEnv*, const JavaParamRef<jobject>&) {
   delete this;
@@ skipping 53 matching lines @@
 static jlong Init(JNIEnv* env,
                   const JavaParamRef<jobject>& obj,
                   const JavaParamRef<jobject>& j_web_contents) {
   FindInPageBridge* bridge = new FindInPageBridge(env, obj, j_web_contents);
   return reinterpret_cast<intptr_t>(bridge);
 }
 
 bool FindInPageBridge::RegisterFindInPageBridge(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }