Add update menu item and app menu icon badge

chrome/android/java/res/values-v17/styles.xml

Index: chrome/android/java/res/values-v17/styles.xml
diff --git a/chrome/android/java/res/values-v17/styles.xml b/chrome/android/java/res/values-v17/styles.xml
index aedff9c655c32f9061ab20890193ee2fd4e99eeb..50ced1f4ce4b6f12fa91c099d1fa14ae79ac559f 100644
--- a/chrome/android/java/res/values-v17/styles.xml
+++ b/chrome/android/java/res/values-v17/styles.xml
@@ -465,4 +465,18 @@
         <item name="android:layout_height">56dp</item>
         <item name="android:scaleType">center</item>
     </style>
+    <style name="AppMenuItem">
+        <item name="android:paddingStart">16dp</item>
+        <item name="android:paddingEnd">16dp</item>
+        <item name="android:background">?attr/listChoiceBackgroundIndicator</item>
+    </style>
+    <style name="UpdateMenuBadge">
+        <item name="android:layout_height">@dimen/menu_badge_size</item>
+        <item name="android:layout_width">@dimen/menu_badge_size</item>
+        <item name="android:layout_gravity">end|bottom</item>
+        <item name="android:layout_marginBottom">14dp</item>
+        <item name="android:focusable">false</item>
+        <item name="android:importantForAccessibility">no</item>
+        <item name="android:visibility">invisible</item>

[Theresa, 2015/12/10 21:22:53]

I changed this from gone to invisible so that the view gets measured and the tab
switcher animation looks correct the first time it runs. I added another method
to Toolbar to set the visibility to gone that can get called once we know the
badge won't show so that it doesn't take up cycles during layout.

I'm not particularly happy with this solution, so I'll try to think of a better
way of getting the view to measure itself when it needs to.

[gone, 2015/12/10 21:45:09]

Acknowledged.

[Theresa, 2015/12/11 19:44:46]

I discussed this w/ newt@ offline and I think making this invisible is the best
approach. The alternative is manually calling mMenuBadge.onMeasure() or
mMenuBadge.onLayout().

+    </style>
 </resources>