Widen a suppression for bug 50297
Widen a suppression for bug 50297

New report:
http://build.chromium.org/buildbot/memory/builders/Chromium%20Mac%20UI%20(valgrind)(4)/builds/3987/steps/memory%20test:%20ui/logs/stdio
UninitCondition
Conditional jump or move depends on uninitialised value(s)
  IPC::Channel::ChannelImpl::ProcessIncomingMessages()
  IPC::Channel::ChannelImpl::OnFileCanReadWithoutBlocking(int)
  base::MessagePumpLibevent::FileDescriptorWatcher::OnFileCanReadWithoutBlocking(int, base::MessagePumpLibevent*)
  base::MessagePumpLibevent::OnLibeventNotification(int, short, void*)
  event_process_active
  event_base_loop
  base::MessagePumpLibevent::Run(base::MessagePump::Delegate*)
  MessageLoop::RunInternal()
  ...
Suppression (error hash=#000000005448C28E#):
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:_ZN3IPC7Channel11ChannelImpl23ProcessIncomingMessagesEv
   fun:_ZN3IPC7Channel11ChannelImpl28OnFileCanReadWithoutBlockingEi
   fun:_ZN4base19MessagePumpLibevent21FileDescriptorWatcher28OnFileCanReadWithoutBlockingEiPS0_
   fun:_ZN4base19MessagePumpLibevent22OnLibeventNotificationEisPv
   fun:event_process_active
   fun:event_base_loop
   fun:_ZN4base19MessagePumpLibevent3RunEPNS_11MessagePump8DelegateE
   fun:_ZN11MessageLoop11RunInternalEv
   ...
}

BUG=50297
TEST=Valgrind/Mac UI(4) should go green
TBR=glider
Review URL: http://codereview.chromium.org/3531013

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@61499 0039d316-1c4b-4281-b951-d872f2087c98

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