commit 29bfd5b51788d32bdc8237747c63443618ae79c4
author Dake Gu <dake@google.com> Fri Mar 20 19:20:00 2015 -0700
committer Dake Gu <dake@google.com> Fri Mar 20 19:38:43 2015 -0700
tree babf49fd323a7f2d088080eedaf9eba3eba7f305
parent 4c8d330a1d37542dca1239878e175dda6c9a3c92

Fix setNumRows gets ignored

setNumRows goes through onMeasure() then onLayout().
Before the onMeasure() gets called, another onLayout()
clears the mForceFullLayout flag without knowing
there is a pending numRows change not handled by onMeasure()
yet.  When 2nd onLayout() gets called,  it doesn't go to the
non fastlayout pass.

There is no need to set the flag when change num rows,
comparing with grid row number can decide if goes through
fast layout pass.

Bug 19872498

Change-Id: Ia5254a49e24be04665a1e5175355827a5dfa7258