Try to force plugins to use software rendering until we can support hardware acceleration on the Mac. BUG=25406, 25092 TEST=Flash should no longer crash immediately after loading on sites with complex Flash applications.
Try to force plugins to use software rendering until we can support
hardware acceleration on the Mac.
BUG=25406, 25092
TEST=Flash should no longer crash immediately after loading on
sites with complex Flash applications.

Review URL: http://codereview.chromium.org/339068

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@30493 0039d316-1c4b-4281-b951-d872f2087c98

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