[Cleanup] Clean up Easy Unlock code a bit.

chrome/browser/ui/webui/options/browser_options_handler.cc

Index: chrome/browser/ui/webui/options/browser_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/browser_options_handler.cc b/chrome/browser/ui/webui/options/browser_options_handler.cc
index 72b1c38a0d112c11e146178148ca5053acc781d3..cae3cba2d302f478e97446fcab1210cb6e3a38e1 100644
--- a/chrome/browser/ui/webui/options/browser_options_handler.cc
+++ b/chrome/browser/ui/webui/options/browser_options_handler.cc
@@ -2035,14 +2035,13 @@ void BrowserOptionsHandler::SetupManagingSupervisedUsers() {
 }
 
 void BrowserOptionsHandler::SetupEasyUnlock() {
+  // TODO(isherman): Is the below TODO still relevant?
   // TODO(xiyuan): Update when pairing data is really availble.

[Ilya Sherman, 2015/02/05 02:27:50]

Xiyuan, could you please clarify what you meant by this TODO?  Thanks :)

[xiyuan, 2015/02/05 03:30:09]

The TODO could be removed. It is done. We were checking prefs directly in
initial version when the TODO is added. It should be removed when we switch to
use EasyUnlockService API.

-  const base::ListValue* devices =
-      EasyUnlockService::Get(Profile::FromWebUI(web_ui()))->GetRemoteDevices();
-  bool has_pairing = devices && !devices->empty();
-  base::FundamentalValue has_pairing_value(has_pairing);
+  base::FundamentalValue is_enabled(
+      EasyUnlockService::Get(Profile::FromWebUI(web_ui()))->IsEnabled());
   web_ui()->CallJavascriptFunction(
       "BrowserOptions.updateEasyUnlock",
-      has_pairing_value);
+      is_enabled);
 }
 
 void BrowserOptionsHandler::SetupExtensionControlledIndicators() {