Added virtual destructor.

android_webview/browser/aw_http_auth_handler_base.h

 // 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.
 
 #ifndef ANDROID_WEBVIEW_BROWSER_AW_HTTP_AUTH_HANDLER_BASE_H_
 #define ANDROID_WEBVIEW_BROWSER_AW_HTTP_AUTH_HANDLER_BASE_H_
 
 namespace content {
 class WebContents;
 };
 
 namespace net {
 class AuthChallengeInfo;
 };
 
 namespace android_webview {
 
 class AwLoginDelegate;
 
 // browser/ layer interface for AwHttpAuthHandler (which is implemented in the
 // native/ layer as a native version of the Java class of the same name). This
 // allows the browser/ layer to be unaware of JNI/Java shenanigans.
 class AwHttpAuthHandlerBase {
  public:
   static AwHttpAuthHandlerBase* Create(AwLoginDelegate* login_delegate,
                                        net::AuthChallengeInfo* auth_info);
+  virtual ~AwHttpAuthHandlerBase();
 
   // Provides an 'escape-hatch' out to Java for the browser/ layer
   // AwLoginDelegate.
   virtual void HandleOnUIThread(content::WebContents*) = 0;
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_AW_HTTP_AUTH_HANDLER_BASE_H_