tree ab2daa908b7198d3a88bbb3e26aa7673375ee508
parent 26300b4d89c5fc8a3bd17be37d84f71890271f93
author Siarhei Vishniakou <svv@google.com> 1564191863 -0700
committer Siarhei Vishniakou <svv@google.com> 1564192084 -0700

Use std::function for commands

While refactoring InputDispatcher to use unique_ptr in order to better
understand the lifespands of different object, it became necessary to
refactor commands into something more comprehensible.

Bug: 70668286
Test: presubmit
Change-Id: I273b4f75a32b2c4faf6f907de9f85e7323f2f90d