diff --git a/core/fxcrt/fx_basic_coords.cpp b/core/fxcrt/fx_basic_coords.cpp
index 0567fa7..0785c78 100644
--- a/core/fxcrt/fx_basic_coords.cpp
+++ b/core/fxcrt/fx_basic_coords.cpp
@@ -50,15 +50,7 @@
     left = top = right = bottom = 0;
   }
 }
-void FX_RECT::Union(const FX_RECT& other_rect) {
-  Normalize();
-  FX_RECT other = other_rect;
-  other.Normalize();
-  left = left < other.left ? left : other.left;
-  right = right > other.right ? right : other.right;
-  bottom = bottom > other.bottom ? bottom : other.bottom;
-  top = top < other.top ? top : other.top;
-}
+
 bool GetIntersection(FX_FLOAT low1,
                      FX_FLOAT high1,
                      FX_FLOAT low2,
diff --git a/core/fxcrt/fx_coordinates.h b/core/fxcrt/fx_coordinates.h
index 1264021..ae09cf3 100644
--- a/core/fxcrt/fx_coordinates.h
+++ b/core/fxcrt/fx_coordinates.h
@@ -195,7 +195,6 @@
 // LTRB rectangles (y-axis runs downwards).
 struct FX_RECT {
   FX_RECT() : left(0), top(0), right(0), bottom(0) {}
-
   FX_RECT(int l, int t, int r, int b) : left(l), top(t), right(r), bottom(b) {}
 
   int Width() const { return right - left; }
@@ -215,9 +214,6 @@
   void Intersect(const FX_RECT& src);
   void Intersect(int l, int t, int r, int b) { Intersect(FX_RECT(l, t, r, b)); }
 
-  void Union(const FX_RECT& other_rect);
-  void Union(int l, int t, int r, int b) { Union(FX_RECT(l, t, r, b)); }
-
   void Offset(int dx, int dy) {
     left += dx;
     right += dx;
@@ -230,11 +226,6 @@
            bottom == src.bottom;
   }
 
-  bool Contains(const FX_RECT& other_rect) const {
-    return other_rect.left >= left && other_rect.right <= right &&
-           other_rect.top >= top && other_rect.bottom <= bottom;
-  }
-
   bool Contains(int x, int y) const {
     return x >= left && x < right && y >= top && y < bottom;
   }