[SVG] SVGAnimatedTransform{,List} migration to new SVG property impl.

This CL replaces SVGAnimatedTransform{,List} with NewSVGProperty based implementation, and replaces SVGMatrixTearOff implementation.

The class hierarchy is quite complicated, so please refer to diagram: https://docs.google.com/a/chromium.org/document/d/1bg7CUyUszqdwmENY3JX6_PoQD6uHRCNcRPJMlC4qlkw/edit#heading=h.c8zvu36koui6

This patch slightly modifies how "SVG fragment identifiers" are parsed. When multiple transform()s are specified, only the last transform() will be used. This behavior is spec conformant: http://www.w3.org/TR/SVG/single-page.html#linking-SVGFragmentIdentifiers

For details, see design doc: https://docs.google.com/document/d/1bg7CUyUszqdwmENY3JX6_PoQD6uHRCNcRPJMlC4qlkw/edit?usp=sharing

NOTRY=true
BUG=308818

Review URL: https://codereview.chromium.org/153883003

git-svn-id: svn://svn.chromium.org/blink/trunk@167565 bbb929c8-8fbe-4397-9dbb-9b2b20218538