Consolidate read-only exception throwing for SVG*TearOffs
Where possible, use the "standard" message for read-only objects from
ExceptionMessages. Move the setup of the ExceptionState with this
message to SVGPropertyTearOffBase and reuse. It also saves a small chunk
of code-space.
Also drop a bunch of vspace, reorder checks in
SVGPreserveAspectRatioTearOff to check for immutability first and do
less work on error in SVGMatrixTearOff.
Review-Url: https://codereview.chromium.org/2357463002
Cr-Commit-Position: refs/heads/master@{#419875}
19 files changed
