Applied fix #11254: assert on wxEVT_MOUSE_CAPTURE_LOST and wxGrid

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@66942 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/grid.h

@@ -1776,6 +1776,11 @@ public:
     // overridden wxWindow methods
     virtual void Fit();
 
+#if wxABI_VERSION >= 20812
+    // implementation only
+    void CancelMouseCapture();
+#endif
+
 protected:
     virtual wxSize DoGetBestSize() const;
 
@@ -2091,7 +2096,7 @@ public:
         return ControlDown();
 #endif
     }
-    
+
     virtual wxEvent *Clone() const { return new wxGridSizeEvent(*this); }
 
 protected:
@@ -2148,7 +2153,7 @@ public:
         return ControlDown();
 #endif
     }
-    
+
     virtual wxEvent *Clone() const { return new wxGridRangeSelectEvent(*this); }
 
 protected:
@@ -2183,7 +2188,7 @@ public:
     void SetRow(int row)                { m_row = row; }
     void SetCol(int col)                { m_col = col; }
     void SetControl(wxControl* ctrl)    { m_ctrl = ctrl; }
-    
+
     virtual wxEvent *Clone() const { return new wxGridEditorCreatedEvent(*this); }
 
 private: