Add missing using statements for JNI types.

android_webview/native/aw_web_contents_delegate.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 "android_webview/native/aw_web_contents_delegate.h"
 
 #include "android_webview/browser/aw_javascript_dialog_manager.h"
 #include "android_webview/browser/find_helper.h"
 #include "android_webview/native/aw_contents.h"
 #include "android_webview/native/aw_contents_io_thread_client_impl.h"
@@ skipping 16 matching lines @@
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/file_chooser_file_info.h"
 #include "content/public/common/file_chooser_params.h"
 #include "content/public/common/media_stream_request.h"
 #include "jni/AwWebContentsDelegate_jni.h"
 #include "net/base/escape.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertUTF16ToJavaString;
 using base::android::ConvertUTF8ToJavaString;
+using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 using content::FileChooserParams;
 using content::WebContents;
 
 namespace android_webview {
 
 namespace {
 
 // WARNING: these constants are exposed in the public interface Java side, so
 // must remain in sync with what clients are expecting.
@@ skipping 266 matching lines @@
   DVLOG(0) << "File Chooser result: mode = " << mode
            << ", file paths = " << base::JoinString(file_path_str, ":");
   rfh->FilesSelectedInChooser(files, mode);
 }
 
 bool RegisterAwWebContentsDelegate(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android_webview