Fix scrollIntoView(...) for SVG elements

AbsoluteBoundingBoxRectForScrollIntoView and associated helpers did not
compute the correct bounding box for SVG shapes (or anything but the SVG
root.)
Compute the bounding rect using the stroke bounding box.

Bug: 803440
Change-Id: If25ca98b686f17a0db699e569460cb4c276f06a0
Reviewed-on: https://chromium-review.googlesource.com/1238458
Reviewed-by: David Bokan <bokan@chromium.org>
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Cr-Commit-Position: refs/heads/master@{#593306}
2 files changed