Measure content view with spec mode EXACTLY.
It's usual for a top view in our activity's hierarchy to expect being measured with spec mode EXACTLY.
To illustrate, DrawerLayout provided by Android support library requires to measured with this spec.
And it's common practice to make this layout be a top view with MATCH_PARENT value for layout width and height.
remove ActionBar usage
convenient test name
Merge pull request #658 from roman-mazur/fix/robowindow-measure

Measure content view with spec mode EXACTLY.