Gets button_dropdown compiling on linux.

views/view.h

Index: views/view.h
===================================================================
--- views/view.h	(revision 17191)
+++ views/view.h	(working copy)
@@ -1020,6 +1020,12 @@
   // by us.
   bool InDrag();
 
+  // Returns how much the mouse needs to move in one direction to start a
+  // drag. These methods cache in a platform-appropriate way. These values are
+  // used by the public static method ExceededDragThreshold().
+  static int GetHorizontalDragThreshold();
+  static int GetVerticalDragThreshold();
+
   // Whether this view is enabled.
   bool enabled_;
 
@@ -1051,12 +1057,6 @@
     int start_y;
   };
 
-  // Returns how much the mouse needs to move in one direction to start a
-  // drag. These methods cache in a platform-appropriate way. These values are
-  // used by the public static method ExceededDragThreshold().
-  static int GetHorizontalDragThreshold();
-  static int GetVerticalDragThreshold();
-
   // RootView invokes these. These in turn invoke the appropriate OnMouseXXX
   // method. If a drag is detected, DoDrag is invoked.
   bool ProcessMousePressed(const MouseEvent& e, DragInfo* drop_info);