position the balloons after closing in a way that will keep the next one's cl...

chrome/browser/notifications/balloon.h

Index: chrome/browser/notifications/balloon.h
===================================================================
--- chrome/browser/notifications/balloon.h	(revision 52083)
+++ chrome/browser/notifications/balloon.h	(working copy)
@@ -57,9 +57,15 @@
   const Notification& notification() const { return *notification_.get(); }
   Profile* profile() const { return profile_; }
 
-  const gfx::Point& position() const { return position_; }
+  gfx::Point GetPosition() const {
+    return position_.Add(offset_);
+  }
   void SetPosition(const gfx::Point& upper_left, bool reposition);
 
+  const gfx::Point& offset() { return offset_;}
+  void set_offset(const gfx::Point& offset) { offset_ = offset; }
+  void add_offset(const gfx::Point& offset) { offset_ = offset_.Add(offset); }
+
   const gfx::Size& content_size() const { return content_size_; }
   void set_content_size(const gfx::Size& size) { content_size_ = size; }
 
@@ -115,6 +121,10 @@
   gfx::Point position_;
   gfx::Size content_size_;
 
+  // Temporary offset for balloons that need to be positioned in a non-standard
+  // position for keeping the close buttons under the mouse cursor.
+  gfx::Point offset_;
+
   // Smallest size for this balloon where scrollbars will be shown.
   gfx::Size min_scrollbar_size_;