Adds a list view option for viewing bookmarks

 Bug: 3166319
 This adds a popup menu option to the combined view that allows a
 user to switch between viewing their bookmarks as a grid of thumbnails
 or as a list of bookmarks with favicons.

Change-Id: I6729d477f574a46847dff4b69c1b32d9f63fb37f
diff --git a/res/layout/bookmarks_history.xml b/res/layout/bookmarks_history.xml
index a89a2b9..b8ccfe7 100644
--- a/res/layout/bookmarks_history.xml
+++ b/res/layout/bookmarks_history.xml
@@ -76,6 +76,23 @@
             android:background="@null"
             android:drawableLeft="@drawable/ic_favorite_off_normal"
             android:drawablePadding="16dip" />
+        <ImageView
+            android:id="@+id/seperate_select_add"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:layout_toLeftOf="@id/addbm"
+            android:paddingRight="16dip"
+            android:src="@drawable/divider_vert" />
+        <TextView
+            android:id="@+id/select_bookmark_view"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:text="@string/switch_to_thumbnails"
+            android:layout_toLeftOf="@id/seperate_select_add"
+            android:paddingRight="16dip"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            android:gravity="center_vertical"
+            android:background="@null" />
     </RelativeLayout>
     <FrameLayout
         android:id="@+id/fragment"