Revert "Replace CPDF_Rect and CPDF_Point with CFX types."

core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp

Index: core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
index 37b82dd564a40ddbc5e04d65d9739246f74b1bb0..d1a7231d450fbe4e1f93503fdfcd4d7e3c78002e 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
@@ -363,6 +363,16 @@ CFX_ByteTextBuf& operator<<(CFX_ByteTextBuf& buf, const CPDF_Object* pObj) {
   return buf;
 }
 
+FX_FLOAT PDF_ClipFloat(FX_FLOAT f) {
+  if (f < 0) {
+    return 0;
+  }
+  if (f > 1.0f) {
+    return 1.0f;
+  }
+  return f;
+}
+
 static CPDF_Object* SearchNumberNode(CPDF_Dictionary* pNode, int num) {
   CPDF_Array* pLimits = pNode->GetArrayBy("Limits");
   if (pLimits &&