Add an initial crypto interface to fill a given buffer with random data. This
has the same implementation as the WebKit one on ChromeOS.

TEST=none
BUG=none
Review URL: http://codereview.chromium.org/6880053

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@82291 0039d316-1c4b-4281-b951-d872f2087c98
13 files changed