Broaden ProfileManager leak suppression.

tools/valgrind/memcheck/suppressions.txt

 # There are three kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 1804 matching lines @@
    fun:__new_exitfn
    fun:__cxa_atexit
 }
 {
    bug_28824
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN7Profile13CreateProfileERK8FilePath
    fun:_ZN14ProfileManager13CreateProfileERK8FilePath
-   fun:_ZN37ProfileManagerTest_CreateProfile_Test8TestBodyEv
 }
 {
    bug_29026
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN3net26FlipNetworkTransactionTest17TransactionHelperERKNS_15HttpRequestInfoEPNS_17DelayedSocketDataE
    fun:_ZN3net42FlipNetworkTransactionTest_WriteError_Test8TestBodyEv
    fun:_ZN7testing4Test3RunEv
    fun:_ZN7testing8internal12TestInfoImpl3RunEv
@@ skipping 14 matching lines @@
    fun:_ZN17ExtensionsService17LoadAllExtensionsEv
    fun:_ZN17ExtensionsService4InitEv
 }
 {
    bug_29069
    Memcheck:Leak
    fun:_Znw*
    fun:_Z9SerializeRKSt6vectorI10UserScriptSaIS0_EE
    fun:_ZN16UserScriptMaster14ScriptReloader7RunScanE8FilePathSt6vectorI10UserScriptSaIS3_EE
 }