Absolutify paths to core/plugins/.

BUG=234793
TBR=abarth

Review URL: https://codereview.chromium.org/14387010

git-svn-id: svn://svn.chromium.org/blink/trunk@149274 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove unused files.

Chromium uses the npapi headers in third_party/npapi/bindings. These files here
are unused. Remove them.

BUG=234793
TBR=abarth

Review URL: https://codereview.chromium.org/14387009

git-svn-id: svn://svn.chromium.org/blink/trunk@149275 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Absolutify paths to svg/properties/.

BUG=234793
TBR=abarth

Review URL: https://codereview.chromium.org/14387012

git-svn-id: svn://svn.chromium.org/blink/trunk@149276 bbb929c8-8fbe-4397-9dbb-9b2b20218538