Extract the code for supporing extended desktop from WorkspaceWindowResizer into DragWindowResizer.

ash/wm/window_resizer.h

Index: ash/wm/window_resizer.h
diff --git a/ash/wm/window_resizer.h b/ash/wm/window_resizer.h
index d8c398fbdb63be01b72495748f075fe7facdd2cd..963daa146dd6dc1b26c7e64bd77f62243f6ec1eb 100644
--- a/ash/wm/window_resizer.h
+++ b/ash/wm/window_resizer.h
@@ -21,37 +21,6 @@ namespace ash {
 // windows coordinates.
 class ASH_EXPORT WindowResizer {
  public:
-  // Constants to identify the type of resize.
-  static const int kBoundsChange_None;
-  static const int kBoundsChange_Repositions;
-  static const int kBoundsChange_Resizes;
-
-  // Used to indicate which direction the resize occurs in.
-  static const int kBoundsChangeDirection_None;
-  static const int kBoundsChangeDirection_Horizontal;
-  static const int kBoundsChangeDirection_Vertical;
-
-  WindowResizer();
-  virtual ~WindowResizer();
-
-  // Returns a bitmask of the kBoundsChange_ values.
-  static int GetBoundsChangeForWindowComponent(int component);
-
-  // Invoked to drag/move/resize the window. |location| is in the coordinates
-  // of the window supplied to the constructor. |event_flags| is the event
-  // flags from the event.
-  virtual void Drag(const gfx::Point& location, int event_flags) = 0;
-
-  // Invoked to complete the drag.
-  virtual void CompleteDrag(int event_flags) = 0;
-
-  // Reverts the drag.
-  virtual void RevertDrag() = 0;
-
-  // Returns the target window the resizer was created for.
-  virtual aura::Window* GetTarget() = 0;
-
- protected:
   struct Details {

[sky, 2012/12/04 15:58:53]

Why do you need to expose all this?

[mazda, 2012/12/04 18:44:41]

I needed to create Details in CreateWindowResizer (declared at the end of this
file) to pass it to DragWindowResizer's constructor.
Is it better to add DragWindowResizer::Create and create Details in it to keep
Details protected?

[sky, 2012/12/04 22:39:43]

Yes please.

     Details();
     Details(aura::Window* window,
@@ -91,6 +60,37 @@ class ASH_EXPORT WindowResizer {
     bool is_resizable;
   };
 
+  // Constants to identify the type of resize.
+  static const int kBoundsChange_None;
+  static const int kBoundsChange_Repositions;
+  static const int kBoundsChange_Resizes;
+
+  // Used to indicate which direction the resize occurs in.
+  static const int kBoundsChangeDirection_None;
+  static const int kBoundsChangeDirection_Horizontal;
+  static const int kBoundsChangeDirection_Vertical;
+
+  WindowResizer();
+  virtual ~WindowResizer();
+
+  // Returns a bitmask of the kBoundsChange_ values.
+  static int GetBoundsChangeForWindowComponent(int component);
+
+  // Invoked to drag/move/resize the window. |location| is in the coordinates
+  // of the window supplied to the constructor. |event_flags| is the event
+  // flags from the event.
+  virtual void Drag(const gfx::Point& location, int event_flags) = 0;
+
+  // Invoked to complete the drag.
+  virtual void CompleteDrag(int event_flags) = 0;
+
+  // Reverts the drag.
+  virtual void RevertDrag() = 0;
+
+  // Returns the target window the resizer was created for.
+  virtual aura::Window* GetTarget() = 0;
+
+ protected:
   static gfx::Rect CalculateBoundsForDrag(const Details& details,
                                           const gfx::Point& location);
 
@@ -124,7 +124,7 @@ class ASH_EXPORT WindowResizer {
 
 // Creates a WindowResizer for |window|. This can return a scoped_ptr
 // initialized with NULL if |window| should not be resized nor dragged.
-scoped_ptr<WindowResizer> CreateWindowResizer(
+ASH_EXPORT scoped_ptr<WindowResizer> CreateWindowResizer(
     aura::Window* window,
     const gfx::Point& point_in_parent,
     int window_component);