Move ComboView to its own activity

 Bugs: 5009130 3368824

Change-Id: I559bb88a1e759172ef9a7d2a8b41ea4c7e523ec6
diff --git a/res/layout/bookmarks_history.xml b/res/layout/bookmarks_history.xml
index 826fe49..5ec310c 100644
--- a/res/layout/bookmarks_history.xml
+++ b/res/layout/bookmarks_history.xml
@@ -17,6 +17,4 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/fragment"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@drawable/bg_browser"
-    android:paddingTop="?android:attr/actionBarSize" />
+    android:layout_height="match_parent" />