Scroll oversized images in the image review UI

Review Request #8377 — Created Sept. 2, 2016 and submitted — Latest diff uploaded

Information

Review Board
release-3.0.x
2300cf1...

Reviewers

Previously, oversized images in the image review UI would cause them to
overflow outside of the review box and increase the width of the page.
Now, these images are confined to the width of the review box and will
scroll horizontally when they are too large.

  • Created a review comment on an oversized image; it scrolled with the
    page.
  • Scrolled an oversized image and created a commment; it worked
    correctly and scrolled with the page.
  • Ensured the scroll bar only showed when images were oversized for the
    currently selected scale.