Show service worker navigation preload requests in DevTools Network tab.

content/browser/devtools/protocol/network_handler.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_DEVTOOLS_PROTOCOL_NETWORK_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_NETWORK_HANDLER_H_
 
+#include <memory>
+
 #include "base/macros.h"
 #include "content/browser/devtools/protocol/devtools_domain_handler.h"
 #include "content/browser/devtools/protocol/network.h"
 #include "net/cookies/canonical_cookie.h"
 
 namespace content {
 
 class DevToolsSession;
 class RenderFrameHostImpl;
+struct ResourceRequest;
+struct ResourceRequestCompletionStatus;
+struct ResourceResponseHead;
 
 namespace protocol {
 
 class NetworkHandler : public DevToolsDomainHandler,
                        public Network::Backend {
  public:
   NetworkHandler();
   ~NetworkHandler() override;
 
   static NetworkHandler* FromSession(DevToolsSession* session);
@@ skipping 22 matching lines @@
       Maybe<std::string> path,
       Maybe<bool> secure,
       Maybe<bool> http_only,
       Maybe<std::string> same_site,
       Maybe<double> expires,
       std::unique_ptr<SetCookieCallback> callback) override;
 
   Response SetUserAgentOverride(const std::string& user_agent) override;
   Response CanEmulateNetworkConditions(bool* result) override;
 
+  void NavigationPreloadRequestSent(int worker_version_id,
+                                    const std::string& request_id,
+                                    const ResourceRequest& request);
+  void NavigationPreloadResponseReceived(int worker_version_id,
+                                         const std::string& request_id,
+                                         const GURL& url,
+                                         const ResourceResponseHead& head);
+  void NavigationPreloadCompleted(
+      const std::string& request_id,
+      const ResourceRequestCompletionStatus& completion_status);
+
   bool enabled() const { return enabled_; }
   std::string UserAgentOverride() const;
 
  private:
+  std::unique_ptr<Network::Frontend> frontend_;
   RenderFrameHostImpl* host_;
   bool enabled_;
   std::string user_agent_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkHandler);
 };
 
 }  // namespace protocol
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_NETWORK_HANDLER_H_