Scott Graham ff274507dc win: Only retry in UseHandler() loop on ERROR_PIPE_BUSY
This is better because now end_to_end_test.py fails immediately with

[1180:9020:20151106,145204.830:ERROR registration_protocol_win.cc:39] CreateFile: The system cannot find the file specified.  (0x2)

R=mark@chromium.org
BUG=crashpad:75

Review URL: https://codereview.chromium.org/1409693011 .
2015-11-06 15:54:48 -08:00
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2015-11-06 10:15:58 -05:00