[Android WebView] Implement initial settings and callback support for Service Workers.

android_webview/native/aw_contents_io_thread_client_impl.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_NATIVE_AW_CONTENTS_IO_THREAD_CLIENT_IMPL_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_IO_THREAD_CLIENT_IMPL_H_
 
 #include "android_webview/browser/aw_contents_io_thread_client.h"
 
 #include <stdint.h>
@@ skipping 22 matching lines @@
  public:
    // Called when AwContents is created before there is a Java client.
   static void RegisterPendingContents(content::WebContents* web_contents);
 
   // Associates the |jclient| instance (which must implement the
   // AwContentsIoThreadClient Java interface) with the |web_contents|.
   // This should be called at most once per |web_contents|.
   static void Associate(content::WebContents* web_contents,
                         const base::android::JavaRef<jobject>& jclient);
 
+  // Sets the |jclient| java instance to which service worker related
+  // callbacks should be delegated.
+  static void SetServiceWorkerIoThreadClient(
+      const base::android::JavaRef<jobject>& jclient);
+
   // Either |pending_associate| is true or |jclient| holds a non-null
   // Java object.
   AwContentsIoThreadClientImpl(bool pending_associate,
                                const base::android::JavaRef<jobject>& jclient);
   ~AwContentsIoThreadClientImpl() override;
 
   // Implementation of AwContentsIoThreadClient.
   bool PendingAssociation() const override;
   CacheMode GetCacheMode() const override;
   void ShouldInterceptRequestAsync(
@@ skipping 23 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(AwContentsIoThreadClientImpl);
 };
 
 // JNI registration method.
 bool RegisterAwContentsIoThreadClientImpl(JNIEnv* env);
 
 } // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_IO_THREAD_CLIENT_IMPL_H_