Revert Gallery ActionBar theme change pending UX input

Bug: 6996822
Change-Id: I984864101013ade438b97f36c3ac168260d9bb80
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 05bff46..3239f68 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -27,8 +27,10 @@
         <item name="android:colorBackground">@null</item>
         <item name="android:colorBackgroundCacheHint">@null</item>
     </style>
-    <style name="Holo.ActionBar" parent="android:Widget.Holo.ActionBar.Solid">
+    <style name="Holo.ActionBar" parent="android:Widget.Holo.ActionBar">
         <item name="android:displayOptions">useLogo|showHome</item>
+        <item name="android:background">@drawable/actionbar_translucent</item>
+        <item name="android:backgroundStacked">@null</item>
     </style>
     <style name="MediaButton.Play" parent="@android:style/MediaButton.Play">
         <item name="android:background">@null</item>