[SRI Message Signatures] Improve the network panel status.

This CL shifts the text in the network panel's status column from
"(blocked:other)" to "(blocked:integrity)", and causes clicks on that
column to expose the set of headers sent along with the response.

Bug: 381044049
Change-Id: Ifbb493030cf3327cfd6954ba9f9b61a46a7b0648
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6397062
Reviewed-by: Simon Zünd <[email protected]>
Commit-Queue: Danil Somsikov <[email protected]>
Auto-Submit: Mike West <[email protected]>
Reviewed-by: Danil Somsikov <[email protected]>

Author: mikewest

front_end/panels/network/NetworkDataGridNode.ts

@@ -99,6 +99,10 @@ const UIStrings = {
    *@description Reason in Network Data Grid Node of the Network panel
    */
   origin: 'origin',
+  /**
+   *@description Noun. Shown in a table cell as the reason why a network request failed. "integrity" here refers to the integrity of the network request itself in a cryptographic sense: signature verification might have failed, for instance.
+   */
+  integrity: 'integrity',
   /**
    *@description Reason in Network Data Grid Node of the Network panel
    */
@@ -1209,6 +1213,10 @@ export class NetworkRequestNode extends NetworkNode {
           displayShowHeadersLink = true;
           reason = i18n.i18n.lockedString('NotSameOriginAfterDefaultedToSameOriginByCoep');
           break;
+        case Protocol.Network.BlockedReason.SriMessageSignatureMismatch:
+          displayShowHeadersLink = true;
+          reason = i18nString(UIStrings.integrity);
+          break;
       }
       if (displayShowHeadersLink) {
         this.setTextAndTitleAsLink(