[TTS] Add a Feature and about:flag for Single Actions.

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 0f9705fff70df981df9e574da2e46e6981fdf8a7..66f75d59eeebafc459594a7f602a02ef528706e4 100644
--- a/chrome/browser/android/chrome_feature_list.cc
+++ b/chrome/browser/android/chrome_feature_list.cc
@@ -37,7 +37,9 @@ const base::Feature* kFeaturesExposedToJava[] = {
     &features::kSimplifiedFullscreenUI,
     &features::kWebPayments,
     &kAndroidPayIntegrationV1,
+    &kCCTExternalLinkHandling,
     &kChromeHomeFeature,
+    &kContextualSearchSingleActions,
     &kDownloadsUiFeature,
     &kImportantSitesInCBD,
     &ntp_snippets::kContentSuggestionsFeature,
@@ -51,7 +53,6 @@ const base::Feature* kFeaturesExposedToJava[] = {
     &kSpecialLocaleFeature,
     &kSpecialLocaleWrapper,
     &kTabReparenting,
-    &kCCTExternalLinkHandling,
     &offline_pages::kOfflinePagesBackgroundLoadingFeature,
     &offline_pages::kBackgroundLoaderForDownloadsFeature,
     &offline_pages::kOfflinePagesCTFeature,  // See crbug.com/620421.
@@ -61,12 +62,19 @@ const base::Feature* kFeaturesExposedToJava[] = {
 
 }  // namespace
 
+// Alphabetical:
 const base::Feature kAndroidPayIntegrationV1{"AndroidPayIntegrationV1",
                                              base::FEATURE_ENABLED_BY_DEFAULT};
 
+const base::Feature kCCTExternalLinkHandling{"CCTExternalLinkHandling",
+                                             base::FEATURE_ENABLED_BY_DEFAULT};
+
 const base::Feature kChromeHomeFeature{"ChromeHome",
                                        base::FEATURE_DISABLED_BY_DEFAULT};
 
+const base::Feature kContextualSearchSingleActions{
+    "ContextualSearchSingleActions", base::FEATURE_DISABLED_BY_DEFAULT};
+
 const base::Feature kDownloadsUiFeature{"DownloadsUi",
                                          base::FEATURE_DISABLED_BY_DEFAULT};
 
@@ -97,9 +105,6 @@ const base::Feature kSpecialLocaleWrapper{"SpecialLocaleWrapper",
 const base::Feature kTabReparenting{"TabReparenting",
                                     base::FEATURE_ENABLED_BY_DEFAULT};
 
-const base::Feature kCCTExternalLinkHandling{"CCTExternalLinkHandling",
-                                    base::FEATURE_ENABLED_BY_DEFAULT};
-
 const base::Feature kUserMediaScreenCapturing{
     "UserMediaScreenCapturing", base::FEATURE_DISABLED_BY_DEFAULT};