Chrome talks to Play to install WebAPKs.

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 9342c8a6fd456cfd9748625c8e7337ac3f496b49..29ecf34fbb8a4b169f86901eceb0fd14c3708587 100644
--- a/chrome/browser/android/chrome_feature_list.cc
+++ b/chrome/browser/android/chrome_feature_list.cc
@@ -49,6 +49,7 @@ const base::Feature* kFeaturesExposedToJava[] = {
     &kNTPOfflinePagesFeature,
     &kPhysicalWebFeature,
     &kPhysicalWebIgnoreOtherClientsFeature,
+    &kPlayInstallWebApks,
     &kSpecialLocaleFeature,
     &kSpecialLocaleWrapper,
     &kTabReparenting,
@@ -104,6 +105,11 @@ const base::Feature kPhysicalWebFeature{"PhysicalWeb",
 const base::Feature kPhysicalWebIgnoreOtherClientsFeature{
     "PhysicalWebIgnoreOtherClients", base::FEATURE_DISABLED_BY_DEFAULT};
 
+// Makes ""Add to Home screen" in the app menu generate an APK by Play Store for
+// the shortcut URL which opens Chrome in fullscreen.
+const base::Feature kPlayInstallWebApks{"PlayInstallWebApks",
+                                        base::FEATURE_DISABLED_BY_DEFAULT};
+
 const base::Feature kSpecialLocaleFeature{"SpecialLocale",
                                           base::FEATURE_DISABLED_BY_DEFAULT};