Fix broken tests for main clear pages

After ag/14438399, a lot of related tests failed.
Create two overlay layout files in robolectric and add original theme
style back.

It's not perfect, but it didn't affect the behavior of tests,
Tests still can build the views and do the original tests.

Test: Run robo test
Fix: 187819138
Change-Id: I7af0e9e6c61fc204efeea03ec3ca8437aeb2d256