Make CFX_Color constructor explicit

xfa/fwl/theme/cfwl_carettp.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 "xfa/fwl/theme/cfwl_carettp.h"
 
 #include "xfa/fwl/basewidget/ifwl_caret.h"
 #include "xfa/fwl/core/cfwl_themebackground.h"
@@ skipping 26 matching lines @@
   }
   return TRUE;
 }
 void CFWL_CaretTP::DrawCaretBK(CFX_Graphics* pGraphics,
                                uint32_t dwStates,
                                const CFX_RectF* pRect,
                                CFX_Color* crFill,
                                CFX_Matrix* pMatrix) {
   CFX_Path path;
   path.Create();
-  CFX_Color crFilltemp;
-  crFill ? crFilltemp = *crFill : crFilltemp = ArgbEncode(255, 0, 0, 0);
   CFX_RectF rect = *pRect;
   path.AddRectangle(rect.left, rect.top, rect.width, rect.height);
-  pGraphics->SetFillColor(&crFilltemp);
+  if (crFill) {
+    pGraphics->SetFillColor(crFill);
+  } else {
+    CFX_Color crFilltemp(ArgbEncode(255, 0, 0, 0));
+    pGraphics->SetFillColor(&crFilltemp);
+  }
   pGraphics->FillPath(&path, FXFILL_WINDING, pMatrix);
 }