[Files App] Only use the first matching file handler from each app.

[Files App] Only use the first matching file handler from each app.

When an app has multiple file handlers for the same file type, it is
shown twice in the "Open With" menu. This CL ensures that only one
file handler is taken from each app.

TEST=Install an app with file handlers (e.g. Text).
Open the Files app and select a handled file (e.g. .txt).
The "Open" menu on the bottom right (next to the trash can) should have a drop-down button.
Click the drop-down, it should list Text.
Select the file again and right-click it.
Click "Open With".
A list of apps should pop up that includes Text.

BUG=350193
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=287493

[jackhou1, 2014-08-04 07:06:49]

satorux, could you please review this?

[satorux1, 2014-08-04 07:21:38]

looks good to me but defer to kinaba@ just in case.

[satorux1, 2014-08-04 07:22:49]

Could you also add a TEST= line and adds instructions on how to test that this
change does not cause regressions (i.e. the open menu works as before)

[kinaba, 2014-08-04 21:40:22]

On 2014/08/04 07:21:38, satorux1 wrote:
> looks good to me but defer to kinaba@ just in case.

lgtm

[jackhou1, 2014-08-05 01:34:44]

The CQ bit was checked by jackhou@chromium.org

[commit-bot: I haz the power, 2014-08-05 01:35:48]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/jackhou@chromium.org/415403006/1

[commit-bot: I haz the power, 2014-08-05 02:27:01]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_chromium_gn_compile_rel on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_chromiu...)
  android_dbg on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_dbg/bui...)
  linux_chromium_gn_rel on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[commit-bot: I haz the power, 2014-08-05 08:13:05]

Change committed as 287493