save-data header value gets appended on page refreshes

save-data header value gets appended on page refreshes

When data-saver is enabled, Chrome sets save-data header value to 'on'.
When the webpage is refreshed, the sub resource requests get the
save-data value as 'on,on'.

BUG=591594
Review URL: https://codereview.chromium.org/1783653002

Cr-Commit-Position: refs/heads/master@{#380568}
(cherry picked from commit 8c957da3f5a7b7e3eb37483a57ebbf323f997f1f)

Committed: https://chromium.googlesource.com/chromium/src/+/a773f1e10667737074f79c4caa9de50da1fbd073

[tbansal1, 2016-03-14 21:55:01]

Description was changed from

==========
save-data header value gets appended on page refreshes

When data-saver is enabled, Chrome sets save-data header value to 'on'.
When the webpage is refreshed, the sub resource requests get the
save-data value as 'on,on'.

BUG=591594

Review URL: https://codereview.chromium.org/1783653002

Cr-Commit-Position: refs/heads/master@{#380568}
(cherry picked from commit 8c957da3f5a7b7e3eb37483a57ebbf323f997f1f)
==========

to

==========
save-data header value gets appended on page refreshes

When data-saver is enabled, Chrome sets save-data header value to 'on'.
When the webpage is refreshed, the sub resource requests get the
save-data value as 'on,on'.

BUG=591594

Review URL: https://codereview.chromium.org/1783653002

Cr-Commit-Position: refs/heads/master@{#380568}
(cherry picked from commit 8c957da3f5a7b7e3eb37483a57ebbf323f997f1f)

Committed:
https://chromium.googlesource.com/chromium/src/+/a773f1e10667737074f79c4caa9d...
==========

[tbansal1, 2016-03-14 21:55:03]

Committed patchset #1 (id:1) manually as
a773f1e10667737074f79c4caa9de50da1fbd073 (tree was closed).