Disables WallpaperOnLoginScreen due to flakiness.

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 <string>
 #include <vector>
 
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "ash/desktop_background/desktop_background_controller_observer.h"
 #include "ash/shell.h"
@@ skipping 305 matching lines @@
   GetUserWallpaperInfo(0, &info);
   ASSERT_EQ(User::DEFAULT, info.type);
   ASSERT_EQ(original_background_color, GetAverageBackgroundColor());
 
   // Check wallpaper change count to ensure that setting the second user's
   // wallpaper didn't have any effect.
   ASSERT_EQ(4, wallpaper_change_count_);
 }
 
 IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest,
-                       PRE_PRE_PRE_WallpaperOnLoginScreen) {
+                       DISABLED_PRE_PRE_PRE_WallpaperOnLoginScreen) {
   RegisterUser(kTestUsers[0]);
   RegisterUser(kTestUsers[1]);
   StartupUtils::MarkOobeCompleted();
 }
 
 IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest,
-                       PRE_PRE_WallpaperOnLoginScreen) {
+                       DISABLED_PRE_PRE_WallpaperOnLoginScreen) {
   LoginUser(kTestUsers[0]);
 
   // Wait until default wallpaper has been loaded.
   RunUntilWallpaperChangeCount(1);
 
   // Set wallpaper policy to red image.
   InjectPolicy(0, kRedImageFileName);
 
   // Run until wallpaper has changed.
   RunUntilWallpaperChangeCount(2);
   ASSERT_EQ(kRedImageColor, GetAverageBackgroundColor());
 }
 
-IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest, PRE_WallpaperOnLoginScreen) {
+IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest,
+                       DISABLED_PRE_WallpaperOnLoginScreen) {
   LoginUser(kTestUsers[1]);
 
   // Wait until default wallpaper has been loaded.
   RunUntilWallpaperChangeCount(1);
 
   // Set wallpaper policy to green image.
   InjectPolicy(1, kGreenImageFileName);
 
   // Run until wallpaper has changed.
   RunUntilWallpaperChangeCount(2);
   ASSERT_EQ(kGreenImageColor, GetAverageBackgroundColor());
 }
 
-IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest, WallpaperOnLoginScreen) {
+// Disabled due to flakiness: http://crbug.com/385648.
+IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest,
+                       DISABLED_WallpaperOnLoginScreen) {
   // Wait for active pod's wallpaper to be loaded.
   RunUntilWallpaperChangeCount(1);
   ASSERT_EQ(kGreenImageColor, GetAverageBackgroundColor());
 
   // Select the second pod (belonging to user 1).
   ASSERT_TRUE(content::ExecuteScript(
       static_cast<chromeos::LoginDisplayHostImpl*>(
           chromeos::LoginDisplayHostImpl::default_host())->GetOobeUI()->
               web_ui()->GetWebContents(),
       "document.getElementsByClassName('pod')[1].focus();"));
@@ skipping 22 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(WallpaperManagerPolicyTest, PersistOverLogout) {
   LoginUser(kTestUsers[0]);
 
   // Wait until wallpaper has been loaded.
   RunUntilWallpaperChangeCount(1);
   ASSERT_EQ(kRedImageColor, GetAverageBackgroundColor());
 }
 
 }  // namespace chromeos