Remove IWFL_WidgetMgr in favor of CFWL_WidgetMgr

xfa/fwl/theme/cfwl_widgettp.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_widgettp.h"
 
 #include <algorithm>
 
@@ skipping 17 matching lines @@
 const float kLineHeight = 12.0f;
 const float kScrollBarWidth = 17.0f;
 const float kCXBorder = 1.0f;
 const float kCYBorder = 1.0f;
 
 #define FWLTHEME_CAPACITY_TextSelColor (ArgbEncode(255, 153, 193, 218))
 
 }  // namespace
 
 static void FWL_SetChildThemeID(IFWL_Widget* pParent, uint32_t dwThemeID) {
-  IFWL_WidgetMgr* pWidgetMgr = FWL_GetWidgetMgr();
+  IFWL_WidgetMgr* pWidgetMgr = IFWL_WidgetMgr::GetInstance();
   IFWL_Widget* pChild =
       pWidgetMgr->GetWidget(pParent, FWL_WGTRELATION_FirstChild);
   while (pChild) {
     IFWL_ThemeProvider* pTheme = pChild->GetThemeProvider();
     if (pTheme) {
       pTheme->SetThemeID(pChild, dwThemeID, FALSE);
     }
     FWL_SetChildThemeID(pChild, dwThemeID);
     pChild = pWidgetMgr->GetWidget(pChild, FWL_WGTRELATION_NextSibling);
   }
@@ skipping 761 matching lines @@
     m_pColorData->clrEnd[0] = ArgbEncode(255, 175, 204, 251);
     m_pColorData->clrEnd[1] = ArgbEncode(255, 185, 218, 251);
     m_pColorData->clrEnd[2] = ArgbEncode(255, 210, 222, 235);
     m_pColorData->clrEnd[3] = ArgbEncode(255, 243, 241, 236);
     m_pColorData->clrSign[0] = ArgbEncode(255, 77, 97, 133);
     m_pColorData->clrSign[1] = ArgbEncode(255, 77, 97, 133);
     m_pColorData->clrSign[2] = ArgbEncode(255, 77, 97, 133);
     m_pColorData->clrSign[3] = ArgbEncode(255, 128, 128, 128);
   }
 }