PlzNavigate: detect when a ServiceWorker is present

content/browser/frame_host/navigation_request.h

 // Copyright 2014 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_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 161 matching lines @@
   // NavigationURLLoaderDelegate implementation.
   void OnRequestRedirected(
       const net::RedirectInfo& redirect_info,
       const scoped_refptr<ResourceResponse>& response) override;
   void OnResponseStarted(
       const scoped_refptr<ResourceResponse>& response,
       std::unique_ptr<StreamHandle> body,
       std::unique_ptr<NavigationData> navigation_data) override;
   void OnRequestFailed(bool has_stale_copy_in_cache, int net_error) override;
   void OnRequestStarted(base::TimeTicks timestamp) override;
+  void OnServiceWorkerEncountered() override;
 
   // Called when the NavigationThrottles have been checked by the
   // NavigationHandle.
   void OnStartChecksComplete(NavigationThrottle::ThrottleCheckResult result);
   void OnRedirectChecksComplete(NavigationThrottle::ThrottleCheckResult result);
   void OnWillProcessResponseChecksComplete(
       NavigationThrottle::ThrottleCheckResult result);
 
   // Have a RenderFrameHost commit the navigation. The NavigationRequest will
   // be destroyed after this call.
   void CommitNavigation();
 
-  // Called when the navigation is about to be sent to the IO thread.
-  void InitializeServiceWorkerHandleIfNeeded();
-
   FrameTreeNode* frame_tree_node_;
 
   // Initialized on creation of the NavigationRequest. Sent to the renderer when
   // the navigation is ready to commit.
   // Note: When the navigation is ready to commit, the url in |common_params|
   // will be set to the final navigation url, obtained after following all
   // redirects.
   // Note: |common_params_| and |begin_params_| are not const as they can be
   // modified during redirects.
   // Note: |request_params_| is not const because service_worker_provider_id
@@ skipping 30 matching lines @@
   // the WillProcessResponse checks are performed by the NavigationHandle.
   scoped_refptr<ResourceResponse> response_;
   std::unique_ptr<StreamHandle> body_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationRequest);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_H_