Cleanup env variable names

fpdfsdk/fpdfxfa/cxfa_fwladaptertimermgr.h

 // 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
 
 #ifndef FPDFSDK_FPDFXFA_CXFA_FWLADAPTERTIMERMGR_H_
 #define FPDFSDK_FPDFXFA_CXFA_FWLADAPTERTIMERMGR_H_
 
 #include <vector>
 
 #include "fpdfsdk/fpdfxfa/cpdfxfa_document.h"
 #include "xfa/fwl/core/ifwl_adaptertimermgr.h"
 
 #define JS_STR_VIEWERTYPE_STANDARD L"Exchange"
 #define JS_STR_LANGUANGE L"ENU"
 #define JS_STR_VIEWERVARIATION L"Full"
 #define JS_STR_VIEWERVERSION_XFA L"11"
 
 struct CFWL_TimerInfo;
 
 class CXFA_FWLAdapterTimerMgr : public IFWL_AdapterTimerMgr {
  public:
-  CXFA_FWLAdapterTimerMgr(CPDFSDK_FormFillEnvironment* pEnv) : m_pEnv(pEnv) {}
+  CXFA_FWLAdapterTimerMgr(CPDFSDK_FormFillEnvironment* pFormFillEnv)
+      : m_pFormFillEnv(pFormFillEnv) {}
 
   FWL_Error Start(IFWL_Timer* pTimer,
                   uint32_t dwElapse,
                   bool bImmediately,
                   IFWL_TimerInfo** pTimerInfo) override;
   FWL_Error Stop(IFWL_TimerInfo* pTimerInfo) override;
 
  protected:
   static void TimerProc(int32_t idEvent);
 
   static std::vector<CFWL_TimerInfo*>* s_TimerArray;
-  CPDFSDK_FormFillEnvironment* const m_pEnv;
+  CPDFSDK_FormFillEnvironment* const m_pFormFillEnv;
 };
 
 struct CFWL_TimerInfo : public IFWL_TimerInfo {
   CFWL_TimerInfo() : pTimer(nullptr) {}
   CFWL_TimerInfo(int32_t event, IFWL_Timer* timer)
       : idEvent(event), pTimer(timer) {}
 
   int32_t idEvent;
   IFWL_Timer* pTimer;
 };
 
 #endif  // FPDFSDK_FPDFXFA_CXFA_FWLADAPTERTIMERMGR_H_