The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4bee12d32b1ab6a23f01b8766d51da0edca0f43a

commit 4bee12d32b1ab6a23f01b8766d51da0edca0f43a
Author: Andrey Lushnikov <lushnikov@chromium.org>
Date: Tue Jun 26 22:58:17 2018

DevTools: teach DOM.getBoxModel to work with SVG nodes

SVG nodes require special handling to compute quads.

BUG= 800636 
R=dgozman

Change-Id: Ie9014ea54bdbae4685ce3ea7aef725c786079ae8
Reviewed-on: https://chromium-review.googlesource.com/1114342
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Andrey Lushnikov <lushnikov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#570566}
[modify] https://crrev.com/4bee12d32b1ab6a23f01b8766d51da0edca0f43a/third_party/WebKit/LayoutTests/inspector-protocol/dom/dom-getBoxModel-expected.txt
[modify] https://crrev.com/4bee12d32b1ab6a23f01b8766d51da0edca0f43a/third_party/WebKit/LayoutTests/inspector-protocol/dom/dom-getBoxModel.js
[modify] https://crrev.com/4bee12d32b1ab6a23f01b8766d51da0edca0f43a/third_party/blink/renderer/core/inspector/inspector_highlight.cc
[modify] https://crrev.com/4bee12d32b1ab6a23f01b8766d51da0edca0f43a/third_party/blink/renderer/core/inspector/inspector_highlight.h