Also, we have multiple tests that contain the same sign up
and login logic and refactoring them would make tests
cleaner and more readable.
Change-Id: I25bf95ca2fffb7f494a3c93a4a4afe429ece70d3
The code will be clearer if the browser starting is entirely separate
from the testplanet and edge setup.
Change-Id: I6d26aa25f4c2a929ba4eda1388234e8aeec518c7