arc: Make Play Store item persistance in shelf.

chrome/browser/policy/policy_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
 #include <string>
@@ skipping 3805 matching lines @@
   EXPECT_FALSE(display_manager->unified_desktop_enabled());
 }
 
 class ArcPolicyTest : public PolicyTest {
  public:
   ArcPolicyTest() {}
   ~ArcPolicyTest() override {}
 
  protected:
   void SetUpTest() {
+    // ArcAuthService functionality is available only when Arc is enabled. Use
+    // kEnableArc switch that activates it.
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
+        chromeos::switches::kEnableArc);
     arc::ArcAuthService::DisableUIForTesting();
 
     browser()->profile()->GetPrefs()->SetBoolean(prefs::kArcSignedIn, true);
     arc::ArcServiceManager::Get()->OnPrimaryUserProfilePrepared(
         multi_user_util::GetAccountIdFromProfile(browser()->profile()));
     arc::ArcAuthService::Get()->OnPrimaryUserProfilePrepared(
         browser()->profile());
   }
 
   void TearDownTest() {
@@ skipping 191 matching lines @@
 
   SetEmptyPolicy();
   // Policy not set.
   CheckSystemTimezoneAutomaticDetectionPolicyUnset();
   EXPECT_TRUE(CheckResolveTimezoneByGeolocation(true, false));
   EXPECT_TRUE(manager->TimeZoneResolverShouldBeRunningForTests());
 }
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace policy