Fall back to legacy add to homescreen behavior on non-GMS device or GMS isn't availabe.

chrome/browser/android/webapk/webapk_installer.cc

Index: chrome/browser/android/webapk/webapk_installer.cc
diff --git a/chrome/browser/android/webapk/webapk_installer.cc b/chrome/browser/android/webapk/webapk_installer.cc
index 1384c5997f700cfa52b0ab58ec16c26684fcbb19..cf8c3e5aacbeef5d517ddcda6e8cfcd2051d087e 100644
--- a/chrome/browser/android/webapk/webapk_installer.cc
+++ b/chrome/browser/android/webapk/webapk_installer.cc
@@ -310,9 +310,9 @@ bool WebApkInstaller::StartUpdateUsingDownloadedWebApk(
       env, java_ref_, java_file_path);
 }
 
-bool WebApkInstaller::HasGooglePlayWebApkInstallDelegate() {
+bool WebApkInstaller::CanUseGooglePlayInstallService() {
   JNIEnv* env = base::android::AttachCurrentThread();
-  return Java_WebApkInstaller_hasGooglePlayWebApkInstallDelegate(
+  return Java_WebApkInstaller_canUseGooglePlayInstallService(
       env, java_ref_);
 }
 
@@ -423,7 +423,7 @@ void WebApkInstaller::OnURLFetchComplete(const net::URLFetcher* source) {
     return;
   }
 
-  if (HasGooglePlayWebApkInstallDelegate()) {
+  if (CanUseGooglePlayInstallService()) {
     int version = 1;
     base::StringToInt(response->version(), &version);
     if (!InstallOrUpdateWebApkFromGooglePlay(