Exclude a couple of more UI tests failing on Valgrind/Mac

TBR=glider
BUG=51716
Review URL: http://codereview.chromium.org/7649014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@96762 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/gtest_exclude/ui_tests.gtest_mac.txt

@@ -119,6 +119,7 @@ ErrorPageTest.IFrameDNSError_Basic
 ExtensionProxyUITest.EnableDisable
 HistoryTester.ConsiderSlowRedirectAsUserInitiated
 HistoryTester.VerifyHistoryLength3
+HostRulesTest.TestMap
 IFrameTest.Crash
 IFrameTest.InEmptyFrame
 LocaleTestsDa.TestStart
@@ -169,6 +170,7 @@ V8BenchmarkTest.Perf
 ViewSourceTest.DoesBrowserConsumeViewSourcePrefix
 WorkerFileSystemTest.FileEntryToURISync
 WorkerFileSystemTest.FileFromFileEntry
+WorkerFileSystemTest.FileFromFileEntrySync
 WorkerFileSystemTest.FileWriterSyncTruncateExtend
 WorkerFileSystemTest.FileWriterTruncateExtend