Restructure the Mac plugin blacklist code
Restructure the Mac plugin blacklist code

Pulls out the generic structure for blacklisting plugins, since the list should be getting smaller and more specifically targeted from here on out.

Switches DivX blacklist to allow the older 1.4 versions, which don't crash. Adds an explicit entry for VLC, which was only covered before by the DivX MIME type.

BUG=25690,37072
TEST=DivX plugin 1.4 should load; other blacklisting should be unchanged.

Review URL: http://codereview.chromium.org/1564001

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@42947 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,gavinp/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,adobe/chromium,yitian134/chromium,yitian134/chromium,gavinp/chromium,ropik/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,ropik/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,adobe/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,adobe/chromium,gavinp/chromium,adobe/chromium