Valgrind: Update suppression after r71537....

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 # running overnight and removing outdated bugs/suppressions.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 3370 matching lines @@
    bug_65664b
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN11webkit_glue22BufferedDataSourceTest20InitializeDataSource*
    fun:_ZN11webkit_glue*BufferedDataSourceTest*
 }
 {
    bug_65664c
    Memcheck:Leak
    fun:_Znw*
-   fun:_ZN11webkit_glue20SimpleDataSourceTest20InitializeDataSourceEPKc
+   fun:_ZN11webkit_glue20SimpleDataSourceTest20InitializeDataSourceEPKcPN5media12MockCallbackE
    fun:_ZN11webkit_glue*SimpleDataSourceTest*
 }
 {
    bug_65664d
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN11webkit_glue40SimpleDataSourceTest_InitializeData_Test8TestBodyEv
    fun:_ZN7testing*HandleExceptionsInMethodIfSupportedINS_4TestEvEET0_PT_MS3_FS2_vEPKc
 }
 {
@@ skipping 164 matching lines @@
    fun:_ZN3net22HttpNetworkTransaction6DoLoopEi
    fun:_ZN3net22HttpNetworkTransaction5StartEPKNS_15HttpRequestInfoEP14CallbackRunnerI6Tuple1IiEERKNS_11BoundNetLogE
    fun:_ZN3net9HttpCache11Transaction13DoSendRequestEv
 }
 {
    bug_69414
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN28PrerenderResourceHandlerTestC2Ev
 }