Fix a memory leak in RulesRegistryStorageDelegate.

tools/valgrind/memcheck/suppressions.txt

 # There are four 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 # running overnight and removing outdated bugs/suppressions.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 5473 matching lines @@
    fun:vp8_tokenize_mb
    fun:vp8cx_encode_inter_macroblock
 }
 {
    bug_133167_c
    Memcheck:Uninitialized
    fun:vp8_dequant_idct_add_uv_block_sse2
    fun:vp8cx_encode_inter_macroblock
 }
 {
-   bug_133449
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZN10extensions28RulesRegistryStorageDelegate4InitEP7ProfilePNS_22RulesRegistryWithCacheERKSs
-   fun:_ZN10extensions20RulesRegistryService30RegisterDefaultRulesRegistriesEv
-   fun:_ZN19ExtensionSystemImpl6Shared4InitEb
-   fun:_ZN19ExtensionSystemImpl4InitEb
-   fun:_ZN14ProfileManager22DoFinalInitForServicesEP7Profileb
-   fun:_ZN14ProfileManager11DoFinalInitEP7Profileb
-   fun:_ZN14ProfileManager10AddProfileEP7Profile
-   fun:_ZN14ProfileManager10GetProfileERK8FilePath
-   fun:_ZN14ProfileManager18GetLastUsedProfileERK8FilePath
-}
-{
    bug_134717
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN2ui15InputMethodIBus13CreateContextEv
    fun:_ZN2ui15InputMethodIBus4InitEb
 }
 {
    bug_65940_a
    Memcheck:Leak
    fun:_Znw*
@@ skipping 26 matching lines @@
    bug_65940_d
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN11ChildThread4InitEv
    fun:_ZN11ChildThreadC2ERKSs
    fun:_ZN16RenderThreadImplC2ERKSs
    fun:_ZN16RenderThreadImplC1ERKSs
    fun:_ZN21WebRTCAudioDeviceTest5SetUpEv
 }
 
-
 #-----------------------------------------------------------------------
 # 4. These only occur on our Google workstations
 
 {
    bug_todo_getdelim
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    ...
    fun:call_init
    fun:_dl_init
 }
 {
    bug_todo_getdelim2
    Memcheck:Leak
    fun:malloc
    fun:getdelim
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }