commit 8fd2c7d74526709ddabb5415a402cf44be9994d9
author Hugo Benichi <hugobenichi@google.com> Mon Jun 05 14:52:24 2017 +0900
committer Hugo Benichi <hugobenichi@google.com> Tue Jul 11 16:14:56 2017 +0900
tree 1384956d9b4b167694228538c413eb4a54255e43
parent 0275780c6c3a8dedea9708f36dd001248a1c0535

Instrument captive portal login activity

Also add CAPTIVE_PORTAL_LOGIN_ACTIVITY_SSL_ERROR constants to
metrics_constants.proto for counting ssl error pages shown by the
captive portal login activity.

Bug: 36203355
Bug: 34901696
Bug: 36532213
Test: manually tested with captive portal testing setup while watching
      event logs: adb logcat -b events | grep captiveportallogin
        06-08 16:25:20.279 21558 21558 I sysui_action: [1004,com.android.captiveportallogin]
        06-08 17:01:04.052 21558 21558 I sysui_action: [1007,com.android.captiveportallogin]

Change-Id: I38b8e4dd3d62ad1261695780aeb2377f26a25997
Merged-In: Ia05853506d424ad4cb2c11770ae7718fbef3f01c
Merged-In: I9184f6263a003c2be28f41a550c6164c8d6ee907

(cherry picked from commit c61dc92fc0619d101c4b789f6305012701cc47a0)