Revert of Remove configuration policy from chrome build files.

chrome/android/chrome_public_apk_tmpl.gni

Index: chrome/android/chrome_public_apk_tmpl.gni
diff --git a/chrome/android/chrome_public_apk_tmpl.gni b/chrome/android/chrome_public_apk_tmpl.gni
index 39bcaf38dd48dafb8ab15b4f544040133f155a5c..04ddc8c0ba9fd99e7ab62f1fecb00f5ca0fcb3fe 100644
--- a/chrome/android/chrome_public_apk_tmpl.gni
+++ b/chrome/android/chrome_public_apk_tmpl.gni
@@ -30,6 +30,11 @@
   "channel=$android_channel",
   "enable_leakcanary=$enable_leakcanary",
 ]
+if (enable_configuration_policy) {
+  default_chrome_public_jinja_variables += [ "configuration_policy=1" ]
+} else {
+  default_chrome_public_jinja_variables += [ "configuration_policy=0" ]
+}
 
 # GYP: //chrome/android/chrome_apk.gypi
 template("chrome_public_apk_tmpl") {