Fixes for re-enabling more MSVC level 4 warnings: media/ edition

media/audio/audio_output_controller.cc

Index: media/audio/audio_output_controller.cc
diff --git a/media/audio/audio_output_controller.cc b/media/audio/audio_output_controller.cc
index 232b77d727d93e8d35b89054acdd0d2a1924fbab..fb01254568adebb5b56baa9cb421dcc0940716ca 100644
--- a/media/audio/audio_output_controller.cc
+++ b/media/audio/audio_output_controller.cc
@@ -223,7 +223,7 @@ void AudioOutputController::DoPause() {
   // Let the renderer know we've stopped.  Necessary to let PPAPI clients know
   // audio has been shutdown.  TODO(dalecurtis): This stinks.  PPAPI should have
   // a better way to know when it should exit PPB_Audio_Shared::Run().
-  sync_reader_->UpdatePendingBytes(-1);
+  sync_reader_->UpdatePendingBytes(kuint32max);
 
   handler_->OnPaused();
 }