Make the cursor have separate mode for disabled mouse events and invisible.

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 2eb2c68e3347294ef1107c4de1a65cdc05a6b16d..44dd30a41f75f5e5be03fef45f85c6c418714de3 100644
--- a/ash/wm/cursor_manager.h
+++ b/ash/wm/cursor_manager.h
@@ -11,6 +11,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/point.h"
 
 namespace ash {
 
@@ -18,6 +19,7 @@ namespace test {
 class CursorManagerTestApi;
 }
 
+class CursorState;
 class ImageCursors;
 
 // This class controls the visibility and the type of the cursor.
@@ -34,6 +36,7 @@ class ASH_EXPORT CursorManager : public aura::client::CursorClient {
   virtual void SetCursor(gfx::NativeCursor) OVERRIDE;
   virtual void ShowCursor(bool show) OVERRIDE;
   virtual bool IsCursorVisible() const OVERRIDE;
+  virtual void EnableCursor(bool enabled) OVERRIDE;
   virtual void SetDeviceScaleFactor(float device_scale_factor) OVERRIDE;
   virtual void LockCursor() OVERRIDE;
   virtual void UnlockCursor() OVERRIDE;
@@ -43,31 +46,27 @@ class ASH_EXPORT CursorManager : public aura::client::CursorClient {
 
   void SetCursorInternal(gfx::NativeCursor cursor);
   void ShowCursorInternal(bool show);
+  void EnableCursorInternal(bool enabled);
 
   // Number of times LockCursor() has been invoked without a corresponding
   // UnlockCursor().
   int cursor_lock_count_;
 
-  // Set to true if SetCursor() is invoked while |cursor_lock_count_| == 0.
-  bool did_cursor_change_;
-
-  // Cursor to set once |cursor_lock_count_| is set to 0. Only valid if
-  // |did_cursor_change_| is true.
-  gfx::NativeCursor cursor_to_set_on_unlock_;
-
-  // Set to true if ShowCursor() is invoked while |cursor_lock_count_| == 0.
-  bool did_visibility_change_;
-
-  // The visibility to set once |cursor_lock_count_| is set to 0. Only valid if
-  // |did_visibility_change_| is true.
-  bool show_on_unlock_;
-
   // Is cursor visible?
   bool cursor_visible_;
 
+  // Is cursor enabled?
+  bool cursor_enabled_;
+
+  // The cursor location where the cursor was disabled.
+  gfx::Point disabled_cursor_location_;
+
   // The cursor currently set.
   gfx::NativeCursor current_cursor_;
 
+  // The cursor state to set when the cursor is unlocked.
+  scoped_ptr<CursorState> state_on_unlock_;
+
   scoped_ptr<ImageCursors> image_cursors_;
 
   DISALLOW_COPY_AND_ASSIGN(CursorManager);