Reland: No longer start up profile if there was an error fetching policy.

chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager_policy_browsertest.cc

 // Copyright 2014 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 <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "ash/desktop_background/desktop_background_controller.h"
@@ skipping 166 matching lines @@
   }
 
   void SetUpCommandLine(base::CommandLine* command_line) override {
     // Set the same switches as LoginManagerTest, except that kMultiProfiles is
     // only set when GetParam() is true and except that kLoginProfile is set
     // when GetParam() is false.  The latter seems to be required for the sane
     // start-up of user profiles.
     command_line->AppendSwitch(switches::kLoginManager);
     command_line->AppendSwitch(switches::kForceLoginManagerInTests);
 
+    // Allow policy fetches to fail - these tests instead invoke InjectPolicy()
+    // to directly inject and modify policy dynamically.
+    command_line->AppendSwitch(switches::kAllowFailedPolicyFetchForTest);
+
     LoginManagerTest::SetUpCommandLine(command_line);
   }
 
   void SetUpOnMainThread() override {
     LoginManagerTest::SetUpOnMainThread();
     ash::Shell::GetInstance()->
         desktop_background_controller()->AddObserver(this);
 
     // Set up policy signing.
     user_policy_builders_[0] = GetUserPolicyBuilder(testUsers_[0]);
@@ skipping 206 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest, PersistOverLogout) {
   LoginUser(testUsers_[0].GetUserEmail());
 
   // Wait until wallpaper has been loaded.
   RunUntilWallpaperChangeCount(1);
   ASSERT_EQ(kRedImageColor, GetAverageBackgroundColor());
 }
 
 }  // namespace chromeos