Image Capture: wire |exposureCompensation| in Linux/CrOs

Image Capture: wire |exposureCompensation| in Linux/CrOs

This CL connects:
- reading of |exposureCompensation| in getPhotoCapabilities()
- configuring of |exposureCompensation| and |exposureMode| in
setPhotoOptions().

Bug: 723930
Change-Id: Ib3ceeacf1df34722fd274ebe935a1c890ae0c4c2
Reviewed-on: https://chromium-review.googlesource.com/508415
Reviewed-by: Reilly Grant <reillyg@chromium.org>;
Commit-Queue: Miguel Casas <mcasas@chromium.org>;
Cr-Original-Commit-Position: refs/heads/master@{#473027}
Review-Url: https://codereview.chromium.org/2890353003 .
Cr-Commit-Position: refs/branch-heads/3071@{#643}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed: https://chromium.googlesource.com/chromium/src/+/d0254e8a8367112742a55bca64347a6b8cd83ec1

[mcasas, 2017-05-20 02:27:55]

Description was changed from

==========
Image Capture: wire |exposureCompensation| in Linux/CrOs

This CL connects:
- reading of |exposureCompensation| in getPhotoCapabilities()
- configuring of |exposureCompensation| and |exposureMode| in
setPhotoOptions().

Bug: 723930
Change-Id: Ib3ceeacf1df34722fd274ebe935a1c890ae0c4c2
Reviewed-on: https://chromium-review.googlesource.com/508415
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Commit-Queue: Miguel Casas <mcasas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#473027}
(cherry picked from commit 75fdd6023fc3df0feda750ae565f9d663187ae97)
==========

to

==========
Image Capture: wire |exposureCompensation| in Linux/CrOs

This CL connects:
- reading of |exposureCompensation| in getPhotoCapabilities()
- configuring of |exposureCompensation| and |exposureMode| in
setPhotoOptions().

Bug: 723930
Change-Id: Ib3ceeacf1df34722fd274ebe935a1c890ae0c4c2
Reviewed-on: https://chromium-review.googlesource.com/508415
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Commit-Queue: Miguel Casas <mcasas@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#473027}
Review-Url: https://codereview.chromium.org/2890353003 .
Cr-Commit-Position: refs/branch-heads/3071@{#643}
Cr-Branched-From:
a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed:
https://chromium.googlesource.com/chromium/src/+/d0254e8a8367112742a55bca6434...
==========

[mcasas, 2017-05-20 02:27:56]

Committed patchset #1 (id:1) manually as
d0254e8a8367112742a55bca64347a6b8cd83ec1.