Remove unused headers from RenderSVGResource.h

Fix fallout and do some (very minor) drive-by fixing.

Review URL: https://codereview.chromium.org/601833002

git-svn-id: svn://svn.chromium.org/blink/trunk@182614 bbb929c8-8fbe-4397-9dbb-9b2b20218538
14 files changed
tree: 6fe691f5bf2b4e4885694789467dda75580f46ec
  1. third_party/