Remove CFX_AffineMatrix/CPDF_Matrix

fpdfsdk/src/fpdf_flatten.cpp

Index: fpdfsdk/src/fpdf_flatten.cpp
diff --git a/fpdfsdk/src/fpdf_flatten.cpp b/fpdfsdk/src/fpdf_flatten.cpp
index 3943e9d63609d42a229bd250fba30109f69a1a5c..76ffec3e26edfbbabb94a8a5c300cad4df18aa35 100644
--- a/fpdfsdk/src/fpdf_flatten.cpp
+++ b/fpdfsdk/src/fpdf_flatten.cpp
@@ -252,11 +252,11 @@ void SetPageContents(CFX_ByteString key,
   }
 }
 
-CFX_AffineMatrix GetMatrix(CPDF_Rect rcAnnot,
-                           CPDF_Rect rcStream,
-                           CFX_AffineMatrix matrix) {
+CFX_Matrix GetMatrix(CPDF_Rect rcAnnot,
+                     CPDF_Rect rcStream,
+                     const CFX_Matrix& matrix) {
   if (rcStream.IsEmpty())
-    return CFX_AffineMatrix();
+    return CFX_Matrix();
 
   matrix.TransformRect(rcStream);
   rcStream.Normalize();
@@ -266,7 +266,7 @@ CFX_AffineMatrix GetMatrix(CPDF_Rect rcAnnot,
 
   FX_FLOAT e = rcAnnot.left - rcStream.left * a;
   FX_FLOAT f = rcAnnot.bottom - rcStream.bottom * d;
-  return CFX_AffineMatrix(a, 0, 0, d, e, f);
+  return CFX_Matrix(a, 0, 0, d, e, f);
 }
 
 void GetOffset(FX_FLOAT& fa,
@@ -275,7 +275,7 @@ void GetOffset(FX_FLOAT& fa,
                FX_FLOAT& ff,
                CPDF_Rect rcAnnot,
                CPDF_Rect rcStream,
-               CFX_AffineMatrix matrix) {
+               const CFX_Matrix& matrix) {
   FX_FLOAT fStreamWidth = 0.0f;
   FX_FLOAT fStreamHeight = 0.0f;
 
@@ -458,7 +458,7 @@ DLLEXPORT int STDCALL FPDFPage_Flatten(FPDF_PAGE page, int nFlag) {
       continue;
 
     CPDF_Dictionary* pAPDic = pAPStream->GetDict();
-    CFX_AffineMatrix matrix = pAPDic->GetMatrix("Matrix");
+    CFX_Matrix matrix = pAPDic->GetMatrix("Matrix");
 
     CPDF_Rect rcStream;
     if (pAPDic->KeyExist("Rect"))
@@ -506,7 +506,7 @@ DLLEXPORT int STDCALL FPDFPage_Flatten(FPDF_PAGE page, int nFlag) {
       matrix.f = 0.0f;
     }
 
-    CFX_AffineMatrix m = GetMatrix(rcAnnot, rcStream, matrix);
+    CFX_Matrix m = GetMatrix(rcAnnot, rcStream, matrix);
     sTemp.Format("q %f 0 0 %f %f %f cm /%s Do Q\n", m.a, m.d, m.e, m.f,
                  sFormName.c_str());
     sStream += sTemp;