Disable two tests.

fast/dom/custom/document-register-reentrant-null-constructor.html
fast/dom/custom/document-register-reentrant-throwing-constructor.html

BUG=295605
TBR= dominicc@chromium.org, enne@chromium.org

Review URL: https://codereview.chromium.org/23698014

git-svn-id: svn://svn.chromium.org/blink/trunk@158109 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Improve a generated NoModificationAllowedError message in the SVG bindings.

BUG=270033

Review URL: https://chromiumcodereview.appspot.com/23653055

git-svn-id: svn://svn.chromium.org/blink/trunk@158110 bbb929c8-8fbe-4397-9dbb-9b2b20218538