commit d7a9d5ffbbec0c68b8bc4fdd72d1dee88511923e
author Ivan Lozano <ivanlozano@google.com> Wed Jan 03 09:40:44 2018 -0800
committer Ivan Lozano <ivanlozano@google.com> Fri Jan 12 16:57:15 2018 -0800
tree 3f6bb414d1498bc07ba76dcd70ea89526ed5ebdc
parent 46d5355af96d582b81d6fae0ff1d3ceb745863f5

Fix overflow sanitizer in Visualizer_command.

There's an intended integer overflow in the Visualizer_command function.
This refactors it to use the builtin overflow-safe function.

 runtime error: unsigned integer overflow: 1664 - 4048 cannot be
 represented in type 'unsigned int'

Bug: 30969751
Test: Builds and boots.
Change-Id: I63a505f4b073480f52d0b073ec5e45c52212caa8
Merged-In: I63a505f4b073480f52d0b073ec5e45c52212caa8
(cherry picked from commit 612d8fcbc996ecd9e0c58f7e2b9fb07d004f29da)