Merge SVGFilter into Filter

This brings the handling for bbox-relative coordinates into the base
class and drops the empty shell that remains.

BUG=109224

Review URL: https://codereview.chromium.org/1348973004

git-svn-id: svn://svn.chromium.org/blink/trunk@202465 bbb929c8-8fbe-4397-9dbb-9b2b20218538
9 files changed
tree: df4db976b20b2ff31b1c759b4b42c5d18f7808a1
  1. third_party/