Mark Mentovai 0c322ecc3f Use zlib to gzip-compress uploads
This adds zlib to Crashpad. By default in standalone Crashpad builds,
the system zlib will be used where available. A copy of Chromium’s zlib
(currently a slightly patched 1.2.11) is checked out via DEPS into
third_party for use on Windows, which does not have a system zlib.

zlib is used to produce gzip streams for HTTP upload request bodies sent
by crashpad_handler by default. The Content-Encoding: gzip header is set
for these compressed request bodies. Compression can be disabled for
upload to servers without corresponding decompression support by
starting crashpad_handler with the --no-upload-gzip option.

Most minidumps compress quite well with zlib. A size reduction of 90% is
not uncommon.

BUG=crashpad:157
TEST=crashpad_util_test GzipHTTPBodyStream.*:HTTPTransport.*

Change-Id: I99b86db3952c3685cd78f5dc858a60b54399c513
Reviewed-on: https://chromium-review.googlesource.com/438585
Reviewed-by: Robert Sesek <rsesek@chromium.org>
2017-02-16 16:26:19 +00:00
..
2017-02-16 16:26:19 +00:00
2017-02-16 16:26:19 +00:00
2017-01-31 22:26:33 +00:00
2017-02-16 16:26:19 +00:00