Android: implement content::Shell::Close()

content/shell/shell_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/shell/shell.h"
 
 #include <jni.h>
 
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
@@ skipping 62 matching lines @@
       env, java_object_.obj(), enter_fullscreen);
 }
 
 bool Shell::PlatformIsFullscreenForTabOrPending(
     const WebContents* web_contents) const {
   JNIEnv* env = AttachCurrentThread();
   return Java_Shell_isFullscreenForTabOrPending(env, java_object_.obj());
 }
 
 void Shell::Close() {
-  // TODO(tedchoc): Implement Close method for android shell
-  NOTIMPLEMENTED();
+  CloseShellView(java_object_.obj());
+  java_object_.Reset();
+  delete this;
 }
 
 // static
 bool Shell::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content