base: Make TimeDurationFormat* report failures.

base: Make TimeDurationFormat* report failures.

Update base::TimeDurationFormat() and
base::TimeDurationFormatWithSeconds() to return boolean
"success" values and use out-params to return formatted
strings. ICU errors were formerly swallowed, which makes it
impossible for the UI to handle them gracefully or for
developers to investigate their causes.

BUG=698802, 677043
Review-Url: https://codereview.chromium.org/2734883003
Cr-Commit-Position: refs/heads/master@{#455144}
(cherry picked from commit efcd30ca164e0e1bbcfe402840d8c23aa9d40fd9)

Review-Url: https://codereview.chromium.org/2736363002 .
Cr-Commit-Position: refs/branch-heads/3029@{#73}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/eaf9c6686c55d0b2d3cbe2c69818db7f017187e7

[Daniel Erat, 2017-03-08 23:17:53]

Description was changed from

==========
base: Make TimeDurationFormat* report failures.

Update base::TimeDurationFormat() and
base::TimeDurationFormatWithSeconds() to return boolean
"success" values and use out-params to return formatted
strings. ICU errors were formerly swallowed, which makes it
impossible for the UI to handle them gracefully or for
developers to investigate their causes.

BUG=698802,677043

Review-Url: https://codereview.chromium.org/2734883003
Cr-Commit-Position: refs/heads/master@{#455144}
(cherry picked from commit efcd30ca164e0e1bbcfe402840d8c23aa9d40fd9)
==========

to

==========
base: Make TimeDurationFormat* report failures.

Update base::TimeDurationFormat() and
base::TimeDurationFormatWithSeconds() to return boolean
"success" values and use out-params to return formatted
strings. ICU errors were formerly swallowed, which makes it
impossible for the UI to handle them gracefully or for
developers to investigate their causes.

BUG=698802,677043

Review-Url: https://codereview.chromium.org/2734883003
Cr-Commit-Position: refs/heads/master@{#455144}
(cherry picked from commit efcd30ca164e0e1bbcfe402840d8c23aa9d40fd9)

Review-Url: https://codereview.chromium.org/2736363002 .
Cr-Commit-Position: refs/branch-heads/3029@{#73}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/eaf9c6686c55d0b2d3cbe2c69818...
==========

[Daniel Erat, 2017-03-08 23:17:54]

Committed patchset #1 (id:1) manually as
eaf9c6686c55d0b2d3cbe2c69818db7f017187e7.