1 files changed, 3 insertions, 2 deletions
diff --git a/core/fxcrt/fx_coordinates.h b/core/fxcrt/fx_coordinates.h
index 08dbd08903..67d3736fd8 100644
--- a/core/fxcrt/fx_coordinates.h
+++ b/core/fxcrt/fx_coordinates.h
@@ -8,12 +8,11 @@
 #define CORE_FXCRT_FX_COORDINATES_H_
 
 #include <algorithm>
+#include <tuple>
 
 #include "core/fxcrt/fx_system.h"
 #include "third_party/base/numerics/safe_math.h"
 
-class CFX_Matrix;
-
 template <class BaseType>
 class CFX_PTemplate {
  public:
@@ -541,6 +540,8 @@ class CFX_Matrix {
     f = other.f;
   }
 
+  std::tuple<float, float, float, float, float, float> AsTuple() const;
+
   void SetIdentity() {
     a = 1;
     b = 0;