This change fixes two minor issues in Safari.
- In gr-diff-highlight, Safari does not support NodeList.forEach.
- In gr-diff-selection_test, a test that should have been failing (a
selection class was missing) was not being run in Chrome/CI. A prior
commit modified the CSS selectors that enable text selection, and the
test was not changed to reflect this.
SHA of the offending commit: 613b49c
Change-Id: I7ef3b017be9ae731496609430e3856f58e5bd24e
The addition of syntax highlighting silently broke copy/paste
functionality due to the addition of another layer of div nesting.
Related to this bug are some issues with correct text selection in
unified diff view, so this patch addresses them as well.
Bug: Issue 4317
Change-Id: Iac7379de4131ab4e44905a54218d42fcfe67ce62
