Suppress two memory errors in spdy tests.

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 0a017105ec5f43455fbdeafb93ccd92c6ec8a3a0..24b104d1f75724016a83e1e3a4f7da038ddf2a2c 100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -2668,3 +2668,35 @@
    obj:*
    fun:_ZN2v88internal6InvokeEbNS0_6HandleINS0_10JSFunctionEEENS1_INS0_6ObjectEEEiPPPS4_Pb
 }
+{
+   bug_42877
+   Memcheck:Addr4
+   fun:_ZN3net8IOBuffer4dataEv
+   fun:_ZN3net19MockTCPClientSocket12CompleteReadEv
+   fun:_ZN3net19MockTCPClientSocket14OnReadCompleteERKNS_8MockReadE
+   fun:_ZN3net17DelayedSocketData12CompleteReadEv
+   fun:_Z16DispatchToMethodIN3net17DelayedSocketDataEMS1_FvvEEvPT_T0_RK6Tuple0
+   fun:_ZN27ScopedRunnableMethodFactoryIN3net17DelayedSocketDataEE14RunnableMethodIMS1_FvvE6Tuple0E3RunEv
+   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
+   fun:_ZN11MessageLoop13DoDelayedWorkEPN4base4TimeE
+   fun:_ZN4base19MessagePumpLibevent3RunEPNS_11MessagePump8DelegateE
+   fun:_ZN11MessageLoop11RunInternalEv
+   fun:_ZN11MessageLoop10RunHandlerEv
+}
+{
+   bug_42877
+   Memcheck:Addr1
+   fun:memcpy
+   fun:_ZN3net19MockTCPClientSocket12CompleteReadEv
+   fun:_ZN3net19MockTCPClientSocket14OnReadCompleteERKNS_8MockReadE
+   fun:_ZN3net17DelayedSocketData12CompleteReadEv
+   fun:_Z16DispatchToMethodIN3net17DelayedSocketDataEMS1_FvvEEvPT_T0_RK6Tuple0
+   fun:_ZN27ScopedRunnableMethodFactoryIN3net17DelayedSocketDataEE14RunnableMethodIMS1_FvvE6Tuple0E3RunEv
+   fun:_ZN11MessageLoop7RunTaskEP4Task
+   fun:_ZN11MessageLoop21DeferOrRunPendingTaskERKNS_11PendingTaskE
+   fun:_ZN11MessageLoop13DoDelayedWorkEPN4base4TimeE
+   fun:_ZN4base19MessagePumpLibevent3RunEPNS_11MessagePump8DelegateE
+   fun:_ZN11MessageLoop11RunInternalEv
+   fun:_ZN11MessageLoop10RunHandlerEv
+}