Fixing: fake asan run time for pyauto must be built without asan itself
Fixing: fake asan run time for pyauto must be built without asan itself

BUG=chromium-os:24567
TEST='USE="asan clang build_tests" emerge-x86-generic chromeos-chrome'

Review URL: https://chromiumcodereview.appspot.com/10037007

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@131614 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,adobe/chromium,ropik/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,ropik/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,adobe/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,ropik/chromium,ropik/chromium,ropik/chromium,adobe/chromium