GitLab

On tablets where first run experience activity shows in a dialog, there
is a UI glitch (flash of white) when ChromeTabbedActivity (or any similar
fillscreen activity) transitions to FRE.

CTA transitions to FRE in onCreate(), aborting CTA launch and canceling
currently running window animation midway. By the time onCreate() is
called, the CTA window is already partially visible, so its removal is
perceived as a flash.

This CL introduces TabbedModeFRE activity, which has the same background
as CTA, but renders its content in a FRE-like dialog on tablets. Because
the background is the same, transition from CTA window looks smooth, and
since content is laid out as a dialog, the end experience looks like FRE
dialog appearing on top of starting CTA activity.


Bug: 771545
Change-Id: I4709a83de147e04ce94ba319cfa820a2ec6dea17
Reviewed-on: https://chromium-review.googlesource.com/723725
Commit-Queue: Dmitry Skiba <dskiba@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#512893}