Disable failing test (ExtensionInstallUIBrowserTest.TestThemeInstallUndoResetsToDefault) on Linux d…

chrome/browser/extensions/extension_install_ui_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 "base/string_util.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/theme_installed_infobar_delegate.h"
 #include "chrome/browser/infobars/infobar_tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 20 matching lines @@
     ASSERT_TRUE(delegate);
     delegate->Cancel();
     ASSERT_EQ(0U, infobar_helper->infobar_count());
   }
 
   const Extension* GetTheme() const {
     return ThemeServiceFactory::GetThemeForProfile(browser()->profile());
   }
 };
 
+#if defined(OS_LINUX)
+// Fails consistently on bot chromium.chromiumos \ Linux.
+// See: http://crbug.com/120647.
+#define MAYBE_TestThemeInstallUndoResetsToDefault DISABLED_TestThemeInstallUndoResetsToDefault
+#else
+#define MAYBE_TestThemeInstallUndoResetsToDefault TestThemeInstallUndoResetsToDefault
+#endif
+
 IN_PROC_BROWSER_TEST_F(ExtensionInstallUIBrowserTest,
-                       TestThemeInstallUndoResetsToDefault) {
+                       MAYBE_TestThemeInstallUndoResetsToDefault) {
   // Install theme once and undo to verify we go back to default theme.
   FilePath theme_crx = PackExtension(test_data_dir_.AppendASCII("theme"));
   ASSERT_TRUE(InstallExtensionWithUI(theme_crx, 1));
   const Extension* theme = GetTheme();
   ASSERT_TRUE(theme);
   std::string theme_id = theme->id();
   VerifyThemeInfoBarAndUndoInstall();
   ASSERT_EQ(NULL, GetTheme());
 
   // Set the same theme twice and undo to verify we go back to default theme.
@@ skipping 69 matching lines @@
   if (NewTabUI::ShouldShowApps()) {
     EXPECT_EQ(num_normal_tabs + 1, browser()->tab_count());
     WebContents* web_contents = browser()->GetSelectedWebContents();
     ASSERT_TRUE(web_contents);
     EXPECT_TRUE(StartsWithASCII(web_contents->GetURL().spec(),
                                 "chrome://newtab/", false));
   } else {
     // TODO(xiyuan): Figure out how to test extension installed bubble?
   }
 }