Clang has stricter checking for conversion to a null pointer.  In C++11 mode, false will produce an error if it is used in a place that expects a pointer.  Change these cases to NULL.

R=reed@google.com, robertphillips@google.com

Author: rtrieu@google.com

Review URL: https://chromiumcodereview.appspot.com/18118004

git-svn-id: http://skia.googlecode.com/svn/trunk@9800 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed