Added uma for pin unlock set up.

chrome/browser/resources/settings/people_page/setup_pin_dialog.js

Index: chrome/browser/resources/settings/people_page/setup_pin_dialog.js
diff --git a/chrome/browser/resources/settings/people_page/setup_pin_dialog.js b/chrome/browser/resources/settings/people_page/setup_pin_dialog.js
index f299a0eaea31aeff60d99f087c958cead71f0664..4efecc7c88a0f2853eec50124bf21a542f22a428 100644
--- a/chrome/browser/resources/settings/people_page/setup_pin_dialog.js
+++ b/chrome/browser/resources/settings/people_page/setup_pin_dialog.js
@@ -204,6 +204,7 @@ Polymer({
         this.isConfirmStep_ = true;
         this.onPinChange_();
         this.$.pinKeyboard.focus();
+        recordLockScreenProgress(LockScreenProgress.ENTER_PIN);
       }
     } else {
       // onPinSubmit_ gets called if the user hits enter on the PIN keyboard.
@@ -226,6 +227,7 @@ Polymer({
         [chrome.quickUnlockPrivate.QuickUnlockMode.PIN],
         [this.pinKeyboardValue_],
         onSetModesCompleted.bind(this));
+        recordLockScreenProgress(LockScreenProgress.CONFIRM_PIN);

[jdufault, 2016/09/13 19:36:35]

Fix indentation

[sammiequon, 2016/09/13 21:34:58]

Done.

     }
   },