Gets button_dropdown compiling on linux.

views/view.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef VIEWS_VIEW_H_
 #define VIEWS_VIEW_H_
 
 #include "build/build_config.h"
 
 #include <algorithm>
@@ skipping 1002 matching lines @@
   virtual void WriteDragData(int press_x, int press_y, OSExchangeData* data);
 
   // Invoked from DoDrag after the drag completes. This implementation does
   // nothing, and is intended for subclasses to do cleanup.
   virtual void OnDragDone();
 
   // Returns whether we're in the middle of a drag session that was initiated
   // 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_;
 
   // Whether the view can be focused.
   bool focusable_;
 
  private:
   friend class RootView;
   friend class FocusManager;
   friend class ViewStorage;
@@ skipping 11 matching lines @@
     void PossibleDrag(int x, int y);
 
     // Whether the press may generate a drag.
     bool possible_drag;
 
     // Coordinates of the mouse press.
     int start_x;
     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);
   bool ProcessMouseDragged(const MouseEvent& e, DragInfo* drop_info);
   void ProcessMouseReleased(const MouseEvent& e, bool canceled);
 
   // Starts a drag and drop operation originating from this view. This invokes
   // WriteDragData to write the data and GetDragOperations to determine the
   // supported drag operations. When done, OnDragDone is invoked.
   void DoDrag(const MouseEvent& e, int press_x, int press_y);
@@ skipping 133 matching lines @@
   // is going to be flipped horizontally (using the appropriate transform) on
   // right-to-left locales for this View.
   bool flip_canvas_on_paint_for_rtl_ui_;
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_VIEW_H_