PrintTo for FilePath -- Pretty-print when comparing FilePaths in gtest

PrintTo for FilePath -- Pretty-print when comparing FilePaths in gtest

Used in upcoming http://codereview.chromium.org/10996005/ (and potentially others).

BUG=148539
TEST=Write a test with an error comparing two FilePaths and confirm the paths' values are printed by gtest as opposed to the byte-representation.


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=158893

[gab, 2012-09-25 20:34:15]

See description, copied method used in string16.[h|cc].

Relevant gtest documentation:
http://code.google.com/p/googletest/wiki/AdvancedGuide#Teaching_Google_Test_H...

Thanks,
Gab

[willchan no longer on Chromium, 2012-09-25 20:36:59]

lgtm

[commit-bot: I haz the power, 2012-09-25 20:41:46]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/gab@chromium.org/10984028/1

[commit-bot: I haz the power, 2012-09-25 23:11:14]

Retried try job too often for step(s) remoting_unittests

[commit-bot: I haz the power, 2012-09-26 13:41:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/gab@chromium.org/10984028/1

[commit-bot: I haz the power, 2012-09-26 17:33:01]

Retried try job too often for step(s) remoting_unittests

[commit-bot: I haz the power, 2012-09-26 17:36:19]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/gab@chromium.org/10984028/1

[commit-bot: I haz the power, 2012-09-26 21:21:14]

Change committed as 158893