Revert "[Mac] Reland r276808 Use a native MessagePump instead of a MessagePumpDefault"

tools/valgrind/memcheck/suppressions_mac.txt

Index: tools/valgrind/memcheck/suppressions_mac.txt
diff --git a/tools/valgrind/memcheck/suppressions_mac.txt b/tools/valgrind/memcheck/suppressions_mac.txt
index de9fcbf04240b62e48d020e8a991531d81a4e8df..9b6a97824b20062bdb50958dd582a4fdfc967e56 100644
--- a/tools/valgrind/memcheck/suppressions_mac.txt
+++ b/tools/valgrind/memcheck/suppressions_mac.txt
@@ -99,19 +99,6 @@
    fun:-[NSBitmapImageRep(NSBitmapImageFileTypeExtensions) representationUsingType:properties:]
    fun:_ZN3gfx8internal24Get1xPNGBytesFromNSImageEP7NSImage
 }
-{
-   # See http://crbug.com/385604
-   bug_385604_a
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_ZNK11AEEventImpl9duplicateEv
-   fun:AESendMessage
-   fun:_ZL35HIToolboxLSNotificationCallbackFunc18LSNotificationCodedPKvPK7__LSASNS1_11LSSessionIDS1_
-   fun:_ZL48LSScheduleNotificationReceiveMessageCallbackFuncP12__CFMachPortPvlS1_
-   fun:__CFMachPortPerform
-   fun:__CFRunLoopRun
-   ...
-}
 # Intentional leaks in AppKit, for an OS-level cache. Only appear on the first
 # run of each reboot.  See also issues 105525, 257276, 340847.
 {
@@ -2478,16 +2465,3 @@
    fun:_ZN5media28VideoCaptureDeviceFactoryMac6CreateERKNS_18VideoCaptureDevice4NameE
    fun:_ZN5media45VideoCaptureDeviceTest_OpenInvalidDevice_Test8TestBodyEv
 }
-{
-   bug_385604_b
-   Memcheck:Leak
-   fun:calloc
-   fun:_ZN18hb_object_header_t6createEj
-   fun:_ZL16hb_object_createI9hb_face_tEPT_v
-   fun:hb_face_create_for_tables
-   fun:_ZN3gfx12_GLOBAL__N_118CreateHarfBuzzFaceEP10SkTypeface
-   fun:_ZN3gfx12_GLOBAL__N_118CreateHarfBuzzFontEP10SkTypefacei
-   fun:_ZN3gfx18RenderTextHarfBuzz8ShapeRunEPNS_8internal15TextRunHarfBuzzE
-   fun:_ZN3gfx18RenderTextHarfBuzz12EnsureLayoutEv
-   fun:_ZN3gfx41RenderTextTest_HarfBuzz_RunDirection_Test8TestBodyEv
-}