ChromeOS MD-OOBE: Add Timezone Selection screen.

chrome/browser/resources/chromeos/login/oobe_welcome.css

Index: chrome/browser/resources/chromeos/login/oobe_welcome.css
diff --git a/chrome/browser/resources/chromeos/login/oobe_welcome.css b/chrome/browser/resources/chromeos/login/oobe_welcome.css
index 0e905a4838b9cf1a3310588341b8929cdccd987f..c89eaccd6c347385d39c5b871a9033fa4ae189b8 100644
--- a/chrome/browser/resources/chromeos/login/oobe_welcome.css
+++ b/chrome/browser/resources/chromeos/login/oobe_welcome.css
@@ -36,7 +36,27 @@
   padding: 0 24px;
 }
 
-/************* Accessibility Screen **************/
+/************* Network Selection Screen **************/
 #networkSelectionScreen .bottom-buttons {
   padding: 0 6px; /* = 8px - 2px back button border */
 }
+
+/************* Timezone Screen **************/
+#timezoneScreen .timezone-selection-entry {
+  border-top: 1px solid lightgrey;
+  height: 44px;
+  padding: 0 20px;
+}
+
+#timezoneScreen .timezone-selection-entry:last-of-type {
+  border-bottom: 1px solid lightgrey;
+}
+
+#timezoneScreen .timezone-selection-title {
+  color: rgba(0, 0, 0, 0.87);
+  font: 13px Roboto, sans-serif;

[xiyuan, 2016/12/09 17:50:59]

nit: Can we just specify font-size? Think the fonts listed here are the defaults
in the login screen webui.

i.e.
  font-size: 13px;

[Alexander Alekseev, 2016/12/10 00:43:00]

This is a tricky question as MD-OOBE is technically a part of old OOBE, which
has different fonts. So I'd leave this as it is.

+}
+
+#timezoneScreen .bottom-buttons {
+  padding: 0 24px;
+}