Suppress memory leak in content::ChromeAppCacheService::InitializeOnIOThread.

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 # running overnight and removing outdated bugs/suppressions.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 3166 matching lines @@
    fun:_ZN8appcache19AppCacheStorageImpl23RunOnePendingSimpleTaskEv
 }
 {
    bug_90215_e
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN8appcache15AppCacheService10InitializeE*
    fun:_ZN21ChromeAppCacheService20InitializeOnIOThreadE*
 }
 {
+   bug_90215_f
+   Memcheck:Leak
+   fun:_Znw*
+   ...
+   fun:_ZN26TransportSecurityPersisterC1EPN3net22TransportSecurityStateERKN4base8FilePathEb
+   fun:_ZNK13ProfileIOData4InitEPSt3mapISs10linked_ptrIN3net20URLRequestJobFactory15ProtocolHandlerEESt4lessISsESaISt4pairIKSsS5_EEE
+   fun:_ZN12_GLOBAL__N_114FactoryForMain6CreateEv
+   fun:_ZN29ChromeURLRequestContextGetter20GetURLRequestContextEv
+   fun:_ZN7content21ChromeAppCacheService20InitializeOnIOThreadERKN4base8FilePathEPNS_15ResourceContextEPN3net23URLRequestContextGetterE13scoped_refptrIN5quota20SpecialStoragePolicyEE
+}
+{
    bug_90240
    Memcheck:Leak
    fun:_Znw*
    ...
    fun:_ZN2pp5proxy26PPP_Instance_Private_Proxy22OnMsgGetInstanceObjectEiNS0_24SerializedVarReturnValueE
 }
 {
    bug_90400
    Memcheck:Leak
    fun:_Znw*
@@ skipping 3790 matching lines @@
    fun:gleUnbindDeleteHashNameAndObject
    fun:glDeleteObjectARB_Exec
    fun:glDeleteProgram
    fun:_ZN7content34CompositingIOSurfaceShaderPrograms5ResetEv
    fun:_ZN7content35CompositingIOSurfaceTransformerTestD2Ev
    fun:_ZN7content69CompositingIOSurfaceTransformerTest_ShaderProgramsCompileAndLink_TestD2Ev
    fun:_ZN7content69CompositingIOSurfaceTransformerTest_ShaderProgramsCompileAndLink_TestD1Ev
    fun:_ZN7content69CompositingIOSurfaceTransformerTest_ShaderProgramsCompileAndLink_TestD0Ev
    fun:_ZN7testing4Test11DeleteSelf_Ev
 }