Widen a Valgrind suppression for an OS X system library.

tools/valgrind/memcheck/suppressions_mac.txt

 # There are three kinds of suppressions in this file:
 # 1. Third party stuff we have no control over.
 #
 # 2. Intentional unit test errors, 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.
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 819 matching lines @@
    fun:_ZN2v88internalL6InvokeEbNS0_6HandleINS0_10JSFunctionEEENS1_INS0_6ObjectEEEiPPPS4_Pb
    fun:_ZN2v88internal9Execution4CallENS0_6HandleINS0_10JSFunctionEEENS2_INS0_6ObjectEEEiPPPS5_Pb
    fun:_ZN2v86Script3RunEv
    fun:_ZN7WebCore27WorkerContextExecutionProxy9runScriptEN2v86HandleINS1_6ScriptEEE
    fun:_ZN7WebCore27WorkerContextExecutionProxy8evaluateERKNS_6StringES3_iPNS_27WorkerContextExecutionStateE
 }
 {
    bug_35164
    Memcheck:Cond
    ...
+   fun:gl_context_init_client_state
+   fun:ogl_begin_rendering
    fun:CARenderOGLRender
    fun:view_draw
-   fun:view_display_link
-   fun:link_callback
-   fun:_ZN13CVDisplayLink9performIOEP11CVTimeStamp
-   fun:_ZN13CVDisplayLink11runIOThreadEv
-   fun:_pthread_start
-   fun:thread_start
 }
 {
    bug_35601
    Memcheck:Cond
    fun:rips_f_DrawRing
    fun:rips_f_BltShape
    fun:ripc_Render
    fun:ripc_DrawRects
    fun:CGContextFillRects
    fun:CGContextFillRect
@@ skipping 726 matching lines @@
    fun:_ZN6Pickle8FindNextEmPKcS1_
    fun:_ZN3IPC7Message8FindNextEPKcS2_
    fun:_ZN3IPC7Channel11ChannelImpl23ProcessIncomingMessagesEv
    fun:_ZN3IPC7Channel11ChannelImpl28OnFileCanReadWithoutBlockingEi
    fun:_ZN4base19MessagePumpLibevent21FileDescriptorWatcher28OnFileCanReadWithoutBlockingEiPS0_
    fun:event_process_active
    fun:event_base_loop
    fun:_ZN4base19MessagePumpLibevent3RunEPNS_11MessagePump8DelegateE
    fun:_ZN11MessageLoop11RunInternalEv
 }