Implement the infrastructure of creating WorkerFetchContext in worker global scope.

content/renderer/render_frame_impl.h

 // Copyright 2013 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 CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 #define CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 483 matching lines @@
   blink::WebMediaPlayer* CreateMediaPlayer(
       const blink::WebMediaPlayerSource& source,
       blink::WebMediaPlayerClient* client,
       blink::WebMediaPlayerEncryptedMediaClient* encrypted_client,
       blink::WebContentDecryptionModule* initial_cdm,
       const blink::WebString& sink_id) override;
   blink::WebApplicationCacheHost* CreateApplicationCacheHost(
       blink::WebApplicationCacheHostClient* client) override;
   blink::WebWorkerContentSettingsClientProxy*
   CreateWorkerContentSettingsClientProxy() override;
+  std::unique_ptr<blink::WebWorkerFetchContext> CreateWorkerFetchContext()
+      override;
   blink::WebExternalPopupMenu* CreateExternalPopupMenu(
       const blink::WebPopupMenuInfo& popup_menu_info,
       blink::WebExternalPopupMenuClient* popup_menu_client) override;
   blink::WebCookieJar* CookieJar() override;
   blink::BlameContext* GetFrameBlameContext() override;
   blink::WebServiceWorkerProvider* CreateServiceWorkerProvider() override;
   void DidAccessInitialDocument() override;
   blink::WebLocalFrame* CreateChildFrame(
       blink::WebLocalFrame* parent,
       blink::WebTreeScopeType scope,
@@ skipping 908 matching lines @@
   std::unique_ptr<PendingNavigationInfo> pending_navigation_info_;
 
   base::WeakPtrFactory<RenderFrameImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_IMPL_H_