WebUI: Disable flaky WebUITests on Linux

These tests are frequently timed out on Linux Tests (dbg)

BUG=579666
TBR=dbeam@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1617623002

Cr-Commit-Position: refs/heads/master@{#370651}

chrome/browser/ui/webui/options/content_settings_exception_area_browsertest.js

@@ -18,7 +18,7 @@ ContentSettingsExceptionAreaWebUITest.prototype = {
   browsePreload: 'chrome://settings-frame/contentExceptions',
 };
 
-// See crbug.com/579830 for OS_LINUX
+// See crbug.com/579666 for OS_LINUX
 GEN('#if defined(OS_CHROMEOS) || defined(OS_LINUX)');
 GEN('#define MAYBE_testOpenContentSettingsExceptionArea ' +
         'DISABLED_testOpenContentSettingsExceptionArea');

chrome/browser/ui/webui/options/search_engine_manager_browsertest.js

@@ -19,7 +19,7 @@ SearchEngineManagerWebUITest.prototype = {
 };
 
 // See crosbug.com/22673 for OS_CHROMEOS
-// See crbug.com/579827 for OS_LINUX
+// See crbug.com/579666 for OS_LINUX
 GEN('#if defined(OS_CHROMEOS) || defined(OS_LINUX)');
 GEN('#define MAYBE_testOpenSearchEngineManager ' +
         'DISABLED_testOpenSearchEngineManager');

chrome/browser/ui/webui/options/settings_app_browsertest.js

@@ -20,8 +20,14 @@ SettingsAppWebUITest.prototype = {
 
 GEN('#if defined(ENABLE_SETTINGS_APP)');
 
+// This test is flaky on Linux bot. See crbug.com/579666
+GEN('#if defined(OS_LINUX)');
+GEN('#define MAYBE_testOpenSettingsApp DISABLED_testOpenSettingsApp');
+GEN('#else');
+GEN('#define MAYBE_testOpenSettingsApp testOpenSettingsApp');
+GEN('#endif  // defined(OS_LINUX)');
 // Test opening Settings App, and do some checks on section visibility.
-TEST_F('SettingsAppWebUITest', 'testOpenSettingsApp', function() {
+TEST_F('SettingsAppWebUITest', 'MAYBE_testOpenSettingsApp', function() {
   // Note there is no location bar in the Settings App.
 
   // Some things are hidden via a parent, so make a helper function.
@@ -41,10 +47,16 @@ TEST_F('SettingsAppWebUITest', 'testOpenSettingsApp', function() {
   assertFalse(isVisible('startup-section'));
 });
 
+// This test is flaky on Linux bot. See crbug.com/579666
+GEN('#if defined(OS_LINUX)');
+GEN('#define MAYBE_testStrings DISABLED_testStrings');
+GEN('#else');
+GEN('#define MAYBE_testStrings testStrings');
+GEN('#endif  // defined(OS_LINUX)');
 // Check functionality of LoadTimeData.overrideValues(), which the Settings App
 // uses. Do spot checks, so the test is not too fragile. Some of the content
 // strings rely on waiting for sync sign-in status, or platform-specifics.
-TEST_F('SettingsAppWebUITest', 'testStrings', function() {
+TEST_F('SettingsAppWebUITest', 'MAYBE_testStrings', function() {
   // Ensure we check against the override values.
   assertTrue(!!loadTimeData.getValue('settingsApp'));
 

chrome/browser/ui/webui/sync_setup_browsertest.js

@@ -81,7 +81,13 @@ SyncSetupWebUITestAsync.prototype = {
   },
 };
 
-TEST_F('SyncSetupWebUITestAsync', 'VerifySignIn', function() {
+// This test is flaky on Linux bot. See crbug.com/579666
+GEN('#if defined(OS_LINUX)');
+GEN('#define MAYBE_VerifySignIn DISABLED_VerifySignIn');
+GEN('#else');
+GEN('#define MAYBE_VerifySignIn VerifySignIn');
+GEN('#endif  // defined(OS_LINUX)');
+TEST_F('SyncSetupWebUITestAsync', 'MAYBE_VerifySignIn', function() {
   // Handle SyncSetupStartSignIn by displaying the sync setup dialog, verifying
   // that a confirmation dialog appears, and clicking OK to dismiss the dialog.
   // Note that this test doesn't actually do a gaia sign in.
@@ -101,8 +107,14 @@ TEST_F('SyncSetupWebUITestAsync', 'VerifySignIn', function() {
   this.startSyncing();
 });
 
+// This test is flaky on Linux bot. See crbug.com/579666
+GEN('#if defined(OS_LINUX)');
+GEN('#define MAYBE_RestoreSyncDataTypes DISABLED_RestoreSyncDataTypes');
+GEN('#else');
+GEN('#define MAYBE_RestoreSyncDataTypes RestoreSyncDataTypes');
+GEN('#endif  // defined(OS_LINUX)');
 // Test that switching to and from "Sync everything" saves and restores types.
-TEST_F('SyncSetupWebUITestAsync', 'RestoreSyncDataTypes', function() {
+TEST_F('SyncSetupWebUITestAsync', 'MAYBE_RestoreSyncDataTypes', function() {
   this.mockHandler.expects(once()).SyncSetupStartSignIn(
     'access-point-settings').will(callFunction(function() {
     SyncSetupOverlay.showSyncSetupPage('configure', {});