Whitelist chrome://inspect for network subresource requests

Bug: 829412
Change-Id: Ia42efe7c749e0eaa44ea9c45a1a4be1a7d43580f
Reviewed-on: https://chromium-review.googlesource.com/1007980
Commit-Queue: Ken Rockot <rockot@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#550206}

extensions/browser/api/web_request/web_request_permissions.cc

@@ -81,7 +81,16 @@ PermissionsData::AccessType GetMinimumAccessType(
 bool IsWebUIAllowedToMakeNetworkRequests(const url::Origin& origin) {
   // Whitelist to work around exceptional cases. This is only used to elide a
   // DCHECK.
-  return origin.host() == "print" || origin.host() == "sync-confirmation";
+  //
+  // If you are adding a new host to this list, please file a corresponding bug
+  // to track its removal. See https://crbug.com/829412 for the metabug.
+  return
+      // https://crbug.com/829414
+      origin.host() == "print" ||
+      // https://crbug.com/831812
+      origin.host() == "sync-confirmation" ||
+      // https://crbug.com/831813
+      origin.host() == "inspect";
 }
 
 }  // namespace