Stick windows to sides of workspaces

ash/wm/drag_window_resizer.h

Index: ash/wm/drag_window_resizer.h
diff --git a/ash/wm/drag_window_resizer.h b/ash/wm/drag_window_resizer.h
index 817588274a18fedeb400d9374201cfcb37350359..ee1ccfecabd2f31f5172170f041075908bee1a13 100644
--- a/ash/wm/drag_window_resizer.h
+++ b/ash/wm/drag_window_resizer.h
@@ -29,19 +29,18 @@ class ASH_EXPORT DragWindowResizer : public WindowResizer {
                                    const gfx::Point& location,
                                    int window_component);
 
-  // WindowResizer overides:
+  // WindowResizer:
   virtual void Drag(const gfx::Point& location, int event_flags) OVERRIDE;
   virtual void CompleteDrag(int event_flags) OVERRIDE;
   virtual void RevertDrag() OVERRIDE;
   virtual aura::Window* GetTarget() OVERRIDE;
 
-  const gfx::Point& GetInitialLocationInParentForTest() const {
-    return details_.initial_location_in_parent;
-  }
-
  private:
   FRIEND_TEST_ALL_PREFIXES(DragWindowResizerTest, DragWindowController);
 
+  // WindowResizer:
+  virtual const gfx::Point& GetInitialLocationForTest() const OVERRIDE;
+
   // Creates DragWindowResizer that adds the ability of dragging windows across
   // displays to |next_window_resizer|. This object takes the ownership of
   // |next_window_resizer|.
@@ -55,6 +54,9 @@ class ASH_EXPORT DragWindowResizer : public WindowResizer {
   // Returns true if we should allow the mouse pointer to warp.
   bool ShouldAllowMouseWarp();
 
+  // return last created instance or NULL.
+  static DragWindowResizer* instance() { return instance_; }

[flackr, 2013/06/17 18:49:42]

nit: I think we should call this last_instance() so as not to imply that there
is only ever 1 instance.
nit: s/return/Returns

[varkha, 2013/06/17 19:05:36]

Done.

+
   scoped_ptr<WindowResizer> next_window_resizer_;
 
   // Shows a semi-transparent image of the window being dragged.
@@ -68,6 +70,9 @@ class ASH_EXPORT DragWindowResizer : public WindowResizer {
   // been deleted.
   bool* destroyed_;
 
+  // Last instance created - for use by the DragWindowResizerTest.
+  static DragWindowResizer* instance_;
+
   DISALLOW_COPY_AND_ASSIGN(DragWindowResizer);
 };