Page Info (native Mac): truncate permission labels and add tooltip.

Page Info (native Mac): truncate permission labels and add tooltip.

BUG=654268
TEST=Try the following on Mac twice, once with Chrome set to German, once with it set to Hebrew (change this in `System Preferences.app` > `Language & Region` > Add to `Preferred languages:` and drag to top).
1) Visit google.com and click on the lock icon in the omnibox to open Page Info
2) Verify that the last permission (MIDI, with a keyboard icon) has a label is truncated using an ellipsis (note: Hebrew is an RTL language, so the ellipsis for it should be on the left)
3) Hover over the label, and check that it shows a full version of the truncated string.

Review-Url: https://codereview.chromium.org/2471253003
Cr-Commit-Position: refs/heads/master@{#429665}
(cherry picked from commit 4d4e9096b9e299a1d910c2647c6328f30110b0c2)

Committed: https://chromium.googlesource.com/chromium/src/+/16886bfae4dff4896be1047f580b19aa2a08e14f

[lgarron, 2016-11-04 20:54:34]

Description was changed from

==========
Page Info (native Mac): truncate permission labels and add tooltip.

BUG=654268
TEST=Try the following on Mac twice, once with Chrome set to German, once with
it set to Hebrew (change this in `System Preferences.app` > `Language & Region`
> Add to `Preferred languages:` and drag to top).
1) Visit google.com and click on the lock icon in the omnibox to open Page Info
2) Verify that the last permission (MIDI, with a keyboard icon) has a label is
truncated using an ellipsis (note: Hebrew is an RTL language, so the ellipsis
for it should be on the left)
3) Hover over the label, and check that it shows a full version of the truncated
string.

Review-Url: https://codereview.chromium.org/2471253003
Cr-Commit-Position: refs/heads/master@{#429665}
(cherry picked from commit 4d4e9096b9e299a1d910c2647c6328f30110b0c2)
==========

to

==========
Page Info (native Mac): truncate permission labels and add tooltip.

BUG=654268
TEST=Try the following on Mac twice, once with Chrome set to German, once with
it set to Hebrew (change this in `System Preferences.app` > `Language & Region`
> Add to `Preferred languages:` and drag to top).
1) Visit google.com and click on the lock icon in the omnibox to open Page Info
2) Verify that the last permission (MIDI, with a keyboard icon) has a label is
truncated using an ellipsis (note: Hebrew is an RTL language, so the ellipsis
for it should be on the left)
3) Hover over the label, and check that it shows a full version of the truncated
string.

Review-Url: https://codereview.chromium.org/2471253003
Cr-Commit-Position: refs/heads/master@{#429665}
(cherry picked from commit 4d4e9096b9e299a1d910c2647c6328f30110b0c2)

Committed:
https://chromium.googlesource.com/chromium/src/+/16886bfae4dff4896be1047f580b...
==========

[lgarron, 2016-11-04 20:54:35]

Committed patchset #1 (id:1) manually as
16886bfae4dff4896be1047f580b19aa2a08e14f (tree was closed).