Update valgrind suppression after code move.

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 # running overnight and removing outdated bugs/suppressions.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 3151 matching lines @@
    fun:_ZN7WebCore12AtomicString4initEv
    fun:_ZN6WebKit10initializeEPNS_12WebKitClientE
    fun:_ZN12WebKitThread20InternalWebKitThread4InitEv
    fun:_ZN4base6Thread10ThreadMainEv
 }
 {
    bug_46161
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN3net14DnsReloadTimer7ExpiredEv
+   fun:_ZN3net24DnsReloadTimerHasExpiredEv
    fun:_ZN3net22SystemHostResolverProcERKSsNS_13AddressFamilyEiPNS_11AddressListEPi
    fun:_ZN3net15ResolveAddrInfoEPNS_16HostResolverProcERKSsNS_13AddressFamilyEiPNS_11AddressListEPi
    fun:_ZN3net16HostResolverImpl3Job8DoLookupEv
    fun:_Z16DispatchToMethodIN3net16HostResolverImpl3JobEMS2_FvvEEvPT_T0_RK6Tuple0
    fun:_ZN14RunnableMethodIN3net16HostResolverImpl3JobEMS2_FvvE6Tuple0E3RunEv
 }
 {
    bug_46250
    Memcheck:Leak
    fun:_Znw*
@@ skipping 436 matching lines @@
    fun:_ZN15SyncSetupWizard*EP18ProfileSyncService
    fun:_ZN18ProfileSyncService*
    fun:_ZN22ProfileSync*
    ...
    fun:*GetProfileSyncServiceEv
    fun:_ZN7Profile16IsSyncAccessibleEv
    fun:_ZN7Browser31UpdateCommandsForFullscreenModeEb
    fun:_ZN7Browser16InitCommandStateEv
    fun:_ZN7Browser*ENS_4TypeEP7Profile
 }