Move ash specific cursor code to CursorManager.

ash/wm/cursor_manager.h

Index: ash/wm/cursor_manager.h
diff --git a/ash/wm/cursor_manager.h b/ash/wm/cursor_manager.h
index 9f2cc8b219de81636936d7351d89e2d6c072a2d5..90f3c62c3975bf3bc305dc11d00a69d45177a286 100644
--- a/ash/wm/cursor_manager.h
+++ b/ash/wm/cursor_manager.h
@@ -7,12 +7,14 @@
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
 #include "ui/aura/aura_export.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace ash {
 class CursorDelegate;
+class ImageCursors;
 
 // This class controls the visibility and the type of the cursor.
 // The cursor type can be locked so that the type stays the same
@@ -33,11 +35,24 @@ class CursorManager : public aura::client::CursorClient {
   // Shows or hides the cursor.
   bool cursor_visible() const { return cursor_visible_; }
 
+  // Returns a cursor whose platform cursor and device scale factor are
+  // appropriately set based on the native type of |cursor|.
+  gfx::NativeCursor GetCursorFromNativeType(gfx::NativeCursor cursor);
+
+  // Hides the cursor outside of the Aura root window. The cursor will be drawn
+  // within the Aura root window, and it'll remain hidden after the Aura window
+  // is closed.
+  void HideHostCursor();
+
+  // Overridden from aura::client::CursorClient:
   virtual void SetCursor(gfx::NativeCursor) OVERRIDE;
   virtual void ShowCursor(bool show) OVERRIDE;
   virtual bool IsCursorVisible() const OVERRIDE;
+  virtual void SetDeviceScaleFactor(float device_scale_factor) OVERRIDE;
 
  private:
+  void SetCursorInternal(gfx::NativeCursor cursor);
+
   CursorDelegate* delegate_;
 
   // Number of times LockCursor() has been invoked without a corresponding
@@ -54,6 +69,11 @@ class CursorManager : public aura::client::CursorClient {
   // Is cursor visible?
   bool cursor_visible_;
 
+  // The cursor currently set.
+  gfx::NativeCursor current_cursor_;
+
+  scoped_ptr<ImageCursors> image_cursors_;
+
   DISALLOW_COPY_AND_ASSIGN(CursorManager);
 };