Support horizontal swipe in combo activity

 Bug: 5145315

Change-Id: I1e9b4a6bae325244c7a3fb6159deadc3fcf170e6
diff --git a/res/values/dimensions.xml b/res/values/dimensions.xml
index 8fca68a..f1f9217 100644
--- a/res/values/dimensions.xml
+++ b/res/values/dimensions.xml
@@ -54,7 +54,7 @@
     <dimen name="widgetHorizontalSpacing">14dip</dimen>
     <dimen name="widgetVerticalSpacing">12dip</dimen>
     <!-- For the combined Bookmarks History view -->
-    <dimen name="combo_paddingTop">10dip</dimen>
+    <dimen name="combo_paddingTop">0dip</dimen>
     <dimen name="combo_horizontalSpacing">6dip</dimen>
     <dimen name="tab_view_thumbnail_height">76dip</dimen>
     <!-- Preference activity side margins -->