Update ppapi/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

Linux fixes

BUG=110610
TBR=darin

Review URL: https://chromiumcodereview.appspot.com/15806016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@203629 0039d316-1c4b-4281-b951-d872f2087c98
22 files changed