Removed suppressions for http://crbug.com/35318 and http://crbug.com/58449.

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
diff --git a/tools/valgrind/memcheck/suppressions.txt b/tools/valgrind/memcheck/suppressions.txt
index 0a6f703f545c62e54894cc25400d289af28e98d0..bb019b20e14f1ebfefad8c72e96010f73566e73c 100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -1938,23 +1938,6 @@
    fun:_ZN20LayoutTestController18LocationChangeDoneEv
 }
 {
-   bug_35318
-   Memcheck:Param
-   write(buf)
-   obj:*
-   fun:_ZN3net10FileStream5WriteEPKciP14CallbackRunnerI6Tuple1IiEE
-   fun:_ZN12DownloadFile16AppendDataToFileEPKci
-   fun:_ZN19DownloadFileManager14UpdateDownloadEiP14DownloadBuffer
-   fun:_Z16DispatchToMethodI19DownloadFileManagerMS0_FviP14DownloadBufferEiS2_EvPT_T0_RK6Tuple2IT1_T2_E
-   fun:_ZN14RunnableMethodI19DownloadFileManagerMS0_FviP14DownloadBufferE6Tuple2IiS2_EE3RunEv
-   fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
-   fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
-   fun:_ZN11MessageLoop6DoWorkEv
-   fun:_ZN4base19MessagePumpLibevent3RunEPNS_11MessagePump8DelegateE
-   fun:_ZN11MessageLoop11RunInternalEv
-   fun:_ZN11MessageLoop10RunHandlerEv
-}
-{
    bug_36062
    Memcheck:Leak
    fun:malloc
@@ -2895,13 +2878,6 @@
    fun:_ZN11MessageLoop7RunTaskERKNS_11PendingTaskE
 }
 {
-   bug_58449
-   Memcheck:Leak
-   fun:_Znw*
-   ...
-   fun:_ZN11ProfileImpl18GetDownloadManagerEv
-}
-{
    bug_58546
    Memcheck:Leak
    fun:_Znw*