suppress memory leak from content::TestWebKitPlatformSupport::TestWebKitPlatformSupport

TBR=jochen@chromium.org
BUG=392244

Review URL: https://codereview.chromium.org/373043008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@281808 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions_mac.txt

@@ -2512,3 +2512,14 @@
    fun:_ZN7content16WebIDBCursorImpl16continueFunctionERKN5blink9WebIDBKeyEPNS1_15WebIDBCallbacksE
    fun:_ZN7content38WebIDBCursorImplTest_PrefetchTest_Test8TestBodyEv
 }
+{
+   bug_392244
+   Memcheck:Leak
+   ...
+   fun:_ZN4base10GetTempDirEPNS_8FilePathE
+   fun:_ZN4base15GetShmemTempDirEbPNS_8FilePathE
+   ...
+   fun:_ZN7content25TestWebKitPlatformSupportC2Ev
+   fun:_ZN7content25TestWebKitPlatformSupportC1Ev
+   fun:_ZN7content17UnitTestTestSuiteC2EPN4base9TestSuiteE
+}