Show service worker navigation preload requests in DevTools Network tab

third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js b/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js
index ed622a4f8de8b2ad89d48f4a1957a0e18b59c2f5..5c0b628194df3f1b4b6dadb735dbae93720296d4 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js
@@ -599,6 +599,64 @@ SDK.NetworkDispatcher = class {
   }
 
   /**
+   * @override
+   * @param {!Protocol.Network.RequestId} requestId
+   * @param {string} requestURL
+   * @param {!Protocol.Network.Timestamp} time
+   * @param {!Protocol.Network.Timestamp} wallTime
+   * @param {!Protocol.Network.Initiator} initiator
+   */
+  navigationPreloadSent(requestId, requestURL, time, wallTime, initiator) {
+    var networkRequest = this._createNetworkRequest(requestId, '', '', requestURL, requestURL, initiator);
+    networkRequest.setIssueTime(time, wallTime);
+    this._startNetworkRequest(networkRequest);
+  }
+
+  /**
+   * @override
+   * @param {!Protocol.Network.RequestId} requestId
+   * @param {!Protocol.Network.Timestamp} time
+   * @param {!Protocol.Network.Response} response
+   */
+  navigationPreloadResponseReceived(requestId, time, response) {
+    var networkRequest = this._inflightRequestsById[requestId];
+    if (!networkRequest)
+      return;
+
+    networkRequest.responseReceivedTime = time;
+    this._updateNetworkRequestWithResponse(networkRequest, response);
+    this._updateNetworkRequest(networkRequest);
+    this._manager.dispatchEventToListeners(SDK.NetworkManager.Events.ResponseReceived, networkRequest);
+  }
+
+  /**
+   * @override
+   * @param {!Protocol.Network.RequestId} requestId
+   * @param {!Protocol.Network.Timestamp} time
+   * @param {string} errorMessage
+   */
+  navigationPreloadFailed(requestId, time, errorMessage) {
+    var networkRequest = this._inflightRequestsById[requestId];
+    if (!networkRequest)
+      return;
+    networkRequest.failed = true;
+    networkRequest.localizedFailDescription = errorMessage;
+    this._finishNetworkRequest(networkRequest, time, -1);
+  }
+
+  /**
+   * @override
+   * @param {!Protocol.Network.RequestId} requestId
+   * @param {!Protocol.Network.Timestamp} time
+   */
+  navigationPreloadFinished(requestId, time) {
+    var networkRequest = this._inflightRequestsById[requestId];
+    if (!networkRequest)
+      return;
+    this._finishNetworkRequest(networkRequest, time, -1);
+  }
+
+  /**
    * @param {!Protocol.Network.RequestId} requestId
    * @param {!Protocol.Network.Timestamp} time
    * @param {string} redirectURL