This adapts the technique used elsewhere to work with
LayoutSVGContainers (specifically LayoutSVGTransformableContainer).

Bug: 697052, 1074080
Change-Id: I5dc1ca440aaa2d76eb49ae54fb0c4422f166c4f3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2165107


Commit-Queue: Fredrik Söderquist <fs@opera.com>
Reviewed-by: Philip Rogers <pdr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#762562}