Re-land "Replace CPDF_Rect and CPDF_Point with CFX types."

core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/include/fpdfapi/fpdf_parser.h"
 
 #include "core/include/fxcrt/fx_ext.h"
 
@@ skipping 345 matching lines @@
       buf << "\r\nendstream";
       break;
     }
     default:
       ASSERT(FALSE);
       break;
   }
   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 &&
       (num < pLimits->GetIntegerAt(0) || num > pLimits->GetIntegerAt(1))) {
     return NULL;
   }
   CPDF_Array* pNumbers = pNode->GetArrayBy("Nums");
   if (pNumbers) {
     FX_DWORD dwCount = pNumbers->GetCount() / 2;
     for (FX_DWORD i = 0; i < dwCount; i++) {
@@ skipping 20 matching lines @@
     if (pFound) {
       return pFound;
     }
   }
   return NULL;
 }
 
 CPDF_Object* CPDF_NumberTree::LookupValue(int num) {
   return SearchNumberNode(m_pRoot, num);
 }