Prevent title-only panel from fully minimizing when attention is cleared if mouse is in the panel o…

chrome/browser/ui/panels/panel_mouse_watcher.h

Index: chrome/browser/ui/panels/panel_mouse_watcher.h
diff --git a/chrome/browser/ui/panels/panel_mouse_watcher.h b/chrome/browser/ui/panels/panel_mouse_watcher.h
index df6e2bac2f4a4021bfc434752094e4ff8a93d413..b885f882889dd08807a2d86fecd4c32f93f741b6 100644
--- a/chrome/browser/ui/panels/panel_mouse_watcher.h
+++ b/chrome/browser/ui/panels/panel_mouse_watcher.h
@@ -29,11 +29,15 @@ class PanelMouseWatcher {
   void AddObserver(PanelMouseWatcherObserver* observer);
   void RemoveObserver(PanelMouseWatcherObserver* observer);
 
+  // Returns current mouse position. This may be different from the
+  // mouse position in NotifyMouseMovement.
+  virtual gfx::Point GetMousePosition() const = 0;
+
  protected:
   PanelMouseWatcher();
 
   // |mouse_position| is in screen coordinates.
-  void NotifyMouseMovement(const gfx::Point& mouse_position);
+  virtual void NotifyMouseMovement(const gfx::Point& mouse_position);
 
   // Returns true if watching mouse movements.
   virtual bool IsActive() const = 0;