Remap MIME type when loading download items from history db

Remap MIME type when loading download items from history db

Chrome remaps MIME type when inserting download into Android
DownloadManager.
That allows media file to play properly if they use generic MIME type.
However, this doesn't affect the MIME type stored in download history.
And when loading the history item into download home, we should do the
same thing.

BUG=655901
Committed: https://crrev.com/17963656406b00fd2050bc567e85041cbca3a55c
Cr-Commit-Position: refs/heads/master@{#425489}

[qinmin, 2016-10-14 20:43:49]

qinmin@chromium.org changed reviewers:
+ dfalcantara@chromium.org

[qinmin, 2016-10-14 20:43:50]

PTAL

[gone, 2016-10-14 20:46:51]

lgtm

[qinmin, 2016-10-14 20:47:26]

The CQ bit was checked by qinmin@chromium.org

[commit-bot: I haz the power, 2016-10-14 20:47:44]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-14 22:12:34]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-14 22:15:02]

Description was changed from

==========
Remap MIME type when loading download items from history db

Chrome remaps MIME type when inserting download into Android
DownloadManager.
That allows media file to play properly if they use generic MIME type.
However, this doesn't affect the MIME type stored in download history.
And when loading the history item into download home, we should do the
same thing.

BUG=655901
==========

to

==========
Remap MIME type when loading download items from history db

Chrome remaps MIME type when inserting download into Android
DownloadManager.
That allows media file to play properly if they use generic MIME type.
However, this doesn't affect the MIME type stored in download history.
And when loading the history item into download home, we should do the
same thing.

BUG=655901

Committed: https://crrev.com/17963656406b00fd2050bc567e85041cbca3a55c
Cr-Commit-Position: refs/heads/master@{#425489}
==========

[commit-bot: I haz the power, 2016-10-14 22:15:03]

Patchset 1 (id:??) landed as
https://crrev.com/17963656406b00fd2050bc567e85041cbca3a55c
Cr-Commit-Position: refs/heads/master@{#425489}