Finch kill switch feature for background tab.

chrome/browser/android/chrome_feature_list.cc

Index: chrome/browser/android/chrome_feature_list.cc
diff --git a/chrome/browser/android/chrome_feature_list.cc b/chrome/browser/android/chrome_feature_list.cc
index 23e63e7d19d11d03df21a0e51304957f38560439..6837e6ee105cb23c6d94e549a2e522f9934f5d05 100644
--- a/chrome/browser/android/chrome_feature_list.cc
+++ b/chrome/browser/android/chrome_feature_list.cc
@@ -50,6 +50,7 @@ const base::Feature* kFeaturesExposedToJava[] = {
     &kAndroidPayIntegrationV2,
     &kAndroidPaymentApps,
     &kAndroidPaymentAppsFilter,
+    &kCCTBackgroundTab,
     &kCCTExternalLinkHandling,
     &kCCTPostMessageAPI,
     &kChromeHomeFeature,
@@ -116,6 +117,9 @@ const base::Feature kAndroidPaymentApps{"AndroidPaymentApps",
 const base::Feature kAndroidPaymentAppsFilter{
     "AndroidPaymentAppsFilter", base::FEATURE_DISABLED_BY_DEFAULT};
 
+const base::Feature kCCTBackgroundTab{"CCTBackgroundTab",
+                                      base::FEATURE_ENABLED_BY_DEFAULT};
+
 const base::Feature kCCTExternalLinkHandling{"CCTExternalLinkHandling",
                                              base::FEATURE_ENABLED_BY_DEFAULT};