Capture a report on failed browser rendez-vous.

third_party/kasko/BUILD.gn

Index: third_party/kasko/BUILD.gn
diff --git a/third_party/kasko/BUILD.gn b/third_party/kasko/BUILD.gn
index 2d06fe09a8d763498a9b9f99e5aaed757fd3c705..6c1fc76607c7c10b47c38e1de0dc4dbb7438370c 100644
--- a/third_party/kasko/BUILD.gn
+++ b/third_party/kasko/BUILD.gn
@@ -3,15 +3,7 @@
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
-import("//build/config/sanitizers/sanitizers.gni")
-
-declare_args() {
-  # Enable the Kasko crash reporter. Enabled by default on syzyasan build.
-  enable_kasko = is_syzyasan
-
-  # Enable the reporting of browser hangs with Kasko.
-  enable_kasko_hang_reports = false
-}
+import("//third_party/kasko/kasko.gni")
 
 # GYP version: target 'kasko_features' in third_party/kasko/kasko.gyp
 buildflag_header("kasko_features") {
@@ -19,6 +11,7 @@ buildflag_header("kasko_features") {
   flags = [
     "ENABLE_KASKO=$enable_kasko",
     "ENABLE_KASKO_HANG_REPORTS=$enable_kasko_hang_reports",
+    "ENABLE_KASKO_FAILED_RDV_REPORTS=$enable_kasko_failed_rdv_reports",
   ]
 }