Fix date picker performance issues, crash, and incorrect pre-1582 dates.

This cleans up the DateDialogNormalizer, fixing three issues in the
process:

 1. The date picker is now way faster on L devices. This works around a
    performance issue with the Android DatePicker in L, where large
    min/max ranges consume tons of memory and time (many seconds). The
    workaround is simply to limit the date picker's range to at most
    5000 years before and after the initial selected date. In practice,
    this doesn't affect users since manually scrolling through 5000
    years is infeasible.

 2. This fixes a crash when the min date is after 2100 on pre-L devices.
    On KK and earlier, calling DatePicker.setMinDate() with a date
    that's greater than the current max date (which defaults to 2100)
    causes a crash. The fix is to set the DatePicker's min and max dates
    in such an order that the min is always less than the max.

 3. This fixes an issue where min/max dates before 1582 were off by 10
    days due to incorrect handling of the Gregorian/Julian switch.

This also revamps DateDialogNormalizerTest and converts it to a
Robolectric test.

BUG=441060,580385,580388

Review URL: https://codereview.chromium.org/1622773002

Cr-Commit-Position: refs/heads/master@{#371404}

1 files changed, 1 insertions, 0 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 91b0c0a..e85e060 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -290,6 +290,7 @@ group("both_gn_and_gyp") {
       "//tools/android/kerberos/SpnegoAuthenticator:spnego_authenticator_apk",
       "//tools/cygprofile:cygprofile_unittests",
       "//tools/imagediff($host_toolchain)",
+      "//ui/android:ui_junit_tests",
     ]
     deps -= [
       "//net:net_perftests",