Have WebContentsImpl::GetURL call GetVisibleURL

This makes it more apparent that GetURL() == GetVisibleURL(). Before
this change they were exact duplicates of the same code.

Bug: None
Change-Id: If61b4b8660aecaeee5110f208e62d50f948b1422
Reviewed-on: https://chromium-review.googlesource.com/c/1378821
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616900}
1 file changed