Fix header clipping bug on rotate to landscape.

Since the header view's manual clipping is a function
of its width, we need to update it whenever the width
changes.

onConfigurationChanged is too early, so wait until the width
actually changes before updating the clip.

Change-Id: I017448f7e1c2d4bbcf7c93a6a47ad3073c43f5d5
1 file changed