Make DevTools support SignedExchange error fallback

Bug: 890199
Change-Id: Idd9d01735d1a922692de63fc7b99e1154b13e7e9
Reviewed-on: https://chromium-review.googlesource.com/1250764Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Reviewed-by: Kunihiko Sakamoto <ksakamoto@chromium.org>
Commit-Queue: Tsuyoshi Horo <horo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#595590}

third_party/blink/renderer/devtools/front_end/network/NetworkDataGridNode.js

@@ -780,7 +780,8 @@ Network.NetworkRequestNode = class extends Network.NetworkNode {
    * @return {boolean}
    */
   _isFailed() {
-    return (this._request.failed && !this._request.statusCode) || (this._request.statusCode >= 400);
+    return (this._request.failed && !this._request.statusCode) || (this._request.statusCode >= 400) ||
+        (!!this._request.signedExchangeInfo() && !!this._request.signedExchangeInfo().errors);
   }
 
   /**
@@ -957,7 +958,9 @@ Network.NetworkRequestNode = class extends Network.NetworkNode {
     } else if (this._request.fetchedViaServiceWorker) {
       this._setTextAndTitle(cell, Common.UIString('(from ServiceWorker)'));
       cell.classList.add('network-dim-cell');
-    } else if (this._request.redirectSource() && this._request.redirectSource().signedExchangeInfo()) {
+    } else if (
+        this._request.redirectSource() && this._request.redirectSource().signedExchangeInfo() &&
+        !this._request.redirectSource().signedExchangeInfo().errors) {
       this._setTextAndTitle(cell, Common.UIString('(from signed-exchange)'));
       cell.classList.add('network-dim-cell');
     } else if (this._request.cached()) {

third_party/blink/renderer/devtools/front_end/network/RequestHeadersView.js

@@ -399,7 +399,9 @@ Network.RequestHeadersView = class extends UI.VBox {
       } else if (this._request.fetchedViaServiceWorker) {
         statusText += ' ' + Common.UIString('(from ServiceWorker)');
         statusTextElement.classList.add('status-from-cache');
-      } else if (this._request.redirectSource() && this._request.redirectSource().signedExchangeInfo()) {
+      } else if (
+          this._request.redirectSource() && this._request.redirectSource().signedExchangeInfo() &&
+          !this._request.redirectSource().signedExchangeInfo().errors) {
         statusText += ' ' + Common.UIString('(from signed-exchange)');
         statusTextElement.classList.add('status-from-cache');
       } else if (this._request.cached()) {