tree d0d16289eee13281c8c2bcdbd3682dab44377bcc
parent 582ba530a142d637d716393099a57509d401d487
author Kaiyuan Wang <kaiyuanw@google.com> 1469226081 -0700
committer Kaiyuan Wang <kaiyuanw@google.com> 1469226081 -0700

feat(mdtest driver api): provide mdtest driver API that allows users to
access flutter drivers by device nickname

mdtest provides DriverMap class that helps users to access flutter
drivers through device nickname.  The API supports lazy initialization
which means the flutter driver instance will only be initialized the
first time the user wants to access it.  Singleton and factory pattern
is used to prevent redundant readings of the temporary spec file.

Add some code for previous submitted feature.  mdtest should now support
'os-version' and 'api-level' in the test spec.

Change code coverage report location.

Change-Id: I8a64629060071f993e15a64e6c08833211c1f96b