arc: Provide API to control Play Store state from autotests

chrome/browser/chromeos/arc/arc_util.cc

Index: chrome/browser/chromeos/arc/arc_util.cc
diff --git a/chrome/browser/chromeos/arc/arc_util.cc b/chrome/browser/chromeos/arc/arc_util.cc
index 7723792c34c6f22bc5eecadd693adb496c8f206d..31ef3479987e69a410ad7f41c25aaffa1dbe7e78 100644
--- a/chrome/browser/chromeos/arc/arc_util.cc
+++ b/chrome/browser/chromeos/arc/arc_util.cc
@@ -163,6 +163,10 @@ bool IsArcPlayStoreEnabledPreferenceManagedForProfile(const Profile* profile) {
 void SetArcPlayStoreEnabledForProfile(Profile* profile, bool enabled) {
   DCHECK(IsArcAllowedForProfile(profile));
   if (IsArcPlayStoreEnabledPreferenceManagedForProfile(profile)) {
+    if (enabled && !IsArcPlayStoreEnabledForProfile(profile)) {
+      LOG(WARNING) << "Attempt to enable disabled by policy ARC.";
+      return;
+    }
     VLOG(1) << "Google-Play-Store-enabled pref is managed. Request to "
             << (enabled ? "enable" : "disable") << " Play Store is not stored";
     // Need update ARC session manager manually for managed case in order to