Use official server for generating WebAPKs

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 3e09705476b1da17ff780250ded602ab8e8ab6dd..348c336ccc867c6c2cc8f7b7523249ddcd72029f 100644
--- a/chrome/browser/android/webapk/webapk_installer.cc
+++ b/chrome/browser/android/webapk/webapk_installer.cc
@@ -36,7 +36,7 @@ namespace {
 
 // The default WebAPK server URL.
 const char kDefaultServerUrl[] =
-    "https://test-webapk.sandbox.googleapis.com/v1/webApks/?alt=proto&key=AIzaSyAoI6v-F31-3t9NunLYEiKcPIqgTJIUZBw";
+    "https://webapk.googleapis.com/v1/webApks/?alt=proto&key=AIzaSyAoI6v-F31-3t9NunLYEiKcPIqgTJIUZBw";
 
 // The MIME type of the POST data sent to the server.
 const char kProtoMimeType[] = "application/x-protobuf";