md-settings: Added settings for fingerprint unlock.

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

Index: chrome/browser/resources/settings/people_page/people_page.js
diff --git a/chrome/browser/resources/settings/people_page/people_page.js b/chrome/browser/resources/settings/people_page/people_page.js
index eee145ccd8dffe61887ffc0c7de74dac01f4f051..74137a89fa168f3c34a516547bf31d47b71251a5 100644
--- a/chrome/browser/resources/settings/people_page/people_page.js
+++ b/chrome/browser/resources/settings/people_page/people_page.js
@@ -77,6 +77,14 @@ Polymer({
       readOnly: true,
     },
 
+    fingerprintUnlockEnabled_: {

[jdufault, 2016/12/01 17:11:20]

I think it makes a little bit more sense to handle this inside of lock_screen;
people_page doesn't have any logic that needs this value.

It may be nice to be able to externally control if fingerprint is
enabled/disabled for testing though, but that can be added back pretty easily if
needed.

quickUnlockEnabled_ is defined here because it changes the structure of people
page (it adds or removes a settings-subpage).

[sammiequon, 2016/12/01 20:52:29]

Done.

+      type: Boolean,
+      value: function() {
+        return loadTimeData.getBoolean('fingerprintUnlockEnabled');
+      },
+      readOnly: true,
+    },
+
     /** @private {!settings.EasyUnlockBrowserProxy} */
     easyUnlockBrowserProxy_: {
       type: Object,