Wire up showing the quiet UI on abusive sites.

Extend ContextualNotificationPermissionUiSelector to show the quiet
notification permission UI on sites with abusive permission request UX.

Bug: 1081233, 1086512
Change-Id: I2120c4589f44b4d06a4f53dd4fb0ffd894fd1ad2
TBR: [email protected], [email protected]
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2215331
Reviewed-by: Balazs Engedy <[email protected]>
Commit-Queue: Balazs Engedy <[email protected]>
Cr-Commit-Position: refs/heads/master@{#771931}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 7f3a6ba..c090c6af 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -1666,6 +1666,8 @@
     kQuietNotificationPromptsWithAdaptiveActivation[] = {
         {QuietNotificationPermissionUiConfig::kEnableAdaptiveActivation,
          "true"},
+        {QuietNotificationPermissionUiConfig::kEnableAbusiveRequestBlocking,
+         "true"},
         {QuietNotificationPermissionUiConfig::kEnableCrowdDenyTriggering,
          "true"},
         {QuietNotificationPermissionUiConfig::kCrowdDenyHoldBackChance, "0"}};