cros: Lock Screen: Fixed an issue with tab order on the lock screen.

chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.html

Index: chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.html
diff --git a/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.html b/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.html
index 64f6453376d4e841f01a86220ef22b60be3bbf38..4b7642e749316fcded11784a7db1f1f15f6acca9 100644
--- a/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.html
+++ b/chrome/browser/resources/chromeos/quick_unlock/pin_keyboard.html
@@ -32,6 +32,10 @@
 <dom-module id="pin-keyboard">
   <template>
     <style>
+      :host {
+        outline: none;

[jdufault, 2017/01/12 20:43:37]

Unrelated change?

[sammiequon, 2017/01/17 20:00:56]

Because the CL causes the host to receive focus on tab, whenever the host
receives focus it shows a blue outline.

+      }
+
       #root {
         direction: ltr;
         display: flex;