Disable tests failing on Win Tester bot.

SyncSetupWebUITestAsync.RestoreSyncDataTypes
SearchEngineManagerWebUITest.testOpenSearchEngineManager

TBR=dbeam@chromium.org
BUG=638884

Review-Url: https://codereview.chromium.org/2247033007
Cr-Commit-Position: refs/heads/master@{#412803}

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

@@ -20,12 +20,13 @@ SearchEngineManagerWebUITest.prototype = {
 
 // See crosbug.com/22673 for OS_CHROMEOS
 // See crbug.com/579666 for OS_LINUX
-GEN('#if defined(OS_CHROMEOS) || defined(OS_LINUX)');
+// See crbug.com/638884 for OS_WIN
+GEN('#if defined(OS_CHROMEOS) || defined(OS_LINUX) || defined(OS_WIN)');
 GEN('#define MAYBE_testOpenSearchEngineManager ' +
         'DISABLED_testOpenSearchEngineManager');
 GEN('#else');
 GEN('#define MAYBE_testOpenSearchEngineManager testOpenSearchEngineManager');
-GEN('#endif  // defined(OS_CHROMEOS) || defined(OS_LINUX)');
+GEN('#endif  // defined(OS_CHROMEOS) || defined(OS_LINUX) || defined(OS_WIN)');
 
 // Test opening the search engine manager has correct location.
 TEST_F('SearchEngineManagerWebUITest', 'MAYBE_testOpenSearchEngineManager',

chrome/browser/ui/webui/sync_setup_browsertest.js

@@ -108,12 +108,13 @@ TEST_F('SyncSetupWebUITestAsync', 'MAYBE_VerifySignIn', function() {
   this.startSyncing();
 });
 
-// This test is flaky on Linux bot. See crbug.com/579666
-GEN('#if defined(OS_LINUX)');
+// This test is flaky on Linux and Windows bots. See crbug.com/579666 and
+// crbug.com/638884
+GEN('#if defined(OS_LINUX) || defined(OS_WIN)');
 GEN('#define MAYBE_RestoreSyncDataTypes DISABLED_RestoreSyncDataTypes');
 GEN('#else');
 GEN('#define MAYBE_RestoreSyncDataTypes RestoreSyncDataTypes');
-GEN('#endif  // defined(OS_LINUX)');
+GEN('#endif  // defined(OS_LINUX) || defined(OS_WIN)');
 // Test that switching to and from "Sync everything" saves and restores types.
 TEST_F('SyncSetupWebUITestAsync', 'MAYBE_RestoreSyncDataTypes', function() {
   this.mockHandler.expects(once()).SyncSetupStartSignIn(