GitLab

This patch splits the SkipToGPay experiment into two phases that can be
tested separately per request from early partners:

1) kSkipToGPayIfNoCard: enables skip-to-GPay if and only if user doesn't
   have a usable autofill instrument.
2) kSkipToGPay: enables skip-to-GPay regardless of availability of
   autofill instruments in the user's profile.

Part (1) required an extra lookup from the PersonalDataManager before
dispatching payment app creation. Manual profiling on a Nexus 5 showed
that this added 0.3-19ms extra main thread processing, with average
around 3ms for profiles that contain at least one credit card. This is a
relatively small performance penalty.

Bug: 877284
Change-Id: If465bb1fe0c1f79979cc3743af5474662bd6dd68
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1936107Reviewed-by: Sahel Sharify <sahel@chromium.org>
Commit-Queue: Danyao Wang <danyao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719402}