Refactor interface IMeasureString.
Refactor interface IMeasureString.

PowerOfCode/Eto,l8s/Eto,PowerOfCode/Eto,bbqchickenrobot/Eto-1,l8s/Eto,l8s/Eto,PowerOfCode/Eto,bbqchickenrobot/Eto-1,bbqchickenrobot/Eto-1