wm: Avoid log spew in window manager logs. On developer builds (where NDEBUG is not defined), the window manager logs are growing uncontrollably. After a few days (Nov 17 though Nov 21), I've got almost a gigabyte of logs: # du -sh /var/log/window_manager/ 923M /var/log/window_manager/ This machine has really just been sitting at the login prompt. After the initial bit of debug info, logs are filled with: [1121/131449:21180773:INFO:opengles_visitor.cc(227)] Performing partial screen update: 405, 570, 23, 22. [1121/131449:21181179:INFO:opengles_visitor.cc(267)] Visit container: stage [1121/131449:21258991:INFO:opengles_visitor.cc(227)] Performing partial screen update: 405, 570, 23, 22. [1121/131449:21259441:INFO:opengles_visitor.cc(267)] Visit container: stage [1121/131449:21336403:INFO:opengles_visitor.cc(227)] Performing partial screen update: 405, 570, 23, 22. [1121/131449:21336905:INFO:opengles_visitor.cc(267)] Visit container: stage These messages aren't providing enough useful information to the average user to justify such log spew. Deleting them so that we can still keep other INFO-level logs around but don't get these ones. NOTE that filling up /var/log so badly had the effect of making all autotests take forever, so this should really help the average developer. BUG=None TEST=Emerged and saw that log spew was gone. Change-Id: I60d727bb8f37456a232d75aed8eabc5c59fdf0e0 Reviewed-on: https://gerrit.chromium.org/gerrit/12011 Tested-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Stéphane Marchesin <marcheu@chromium.org> Commit-Ready: Doug Anderson <dianders@chromium.org> Reviewed-by: Daniel Erat <derat@chromium.org>
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