Rename fpdfsdk/fpdfxfa files to match contents

fpdfsdk/fpdfxfa/fpdfxfa_app.h

Index: fpdfsdk/fpdfxfa/fpdfxfa_app.h
diff --git a/fpdfsdk/fpdfxfa/fpdfxfa_app.h b/fpdfsdk/fpdfxfa/fpdfxfa_app.h
deleted file mode 100644
index 59cb220ceec3cb321e1778b8a29f8cc246a350f9..0000000000000000000000000000000000000000
--- a/fpdfsdk/fpdfxfa/fpdfxfa_app.h
+++ /dev/null
@@ -1,79 +0,0 @@
-// 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_FPDFXFA_APP_H_
-#define FPDFSDK_FPDFXFA_FPDFXFA_APP_H_
-
-#include "xfa/fxfa/fxfa.h"
-
-class CPDFSDK_Environment;
-class IFXJS_Runtime;
-
-class CPDFXFA_App : public IXFA_AppProvider {
- public:
-  static CPDFXFA_App* GetInstance();
-  static void ReleaseInstance();
-
-  CPDFXFA_App();
-  ~CPDFXFA_App() override;
-
-  FX_BOOL Initialize(v8::Isolate* pIsolate);
-  CXFA_FFApp* GetXFAApp() { return m_pXFAApp.get(); }
-
-  FX_BOOL AddFormFillEnv(CPDFSDK_Environment* pEnv);
-  FX_BOOL RemoveFormFillEnv(CPDFSDK_Environment* pEnv);
-
-  FX_BOOL IsJavaScriptInitialized() const { return m_bJavaScriptInitialized; }
-  void SetJavaScriptInitialized(FX_BOOL bInitialized) {
-    m_bJavaScriptInitialized = bInitialized;
-  }
-
-  v8::Isolate* GetJSERuntime() const { return m_pIsolate; }
-
-  // IFXA_AppProvider:
-  void GetAppType(CFX_WideString& wsAppType) override;
-  void SetAppType(const CFX_WideStringC& wsAppType) override;
-
-  void GetLanguage(CFX_WideString& wsLanguage) override;
-  void GetPlatform(CFX_WideString& wsPlatform) override;
-  void GetVariation(CFX_WideString& wsVariation) override;
-  void GetVersion(CFX_WideString& wsVersion) override;
-  void GetAppName(CFX_WideString& wsName) override;
-
-  void Beep(uint32_t dwType) override;
-  int32_t MsgBox(const CFX_WideString& wsMessage,
-                 const CFX_WideString& wsTitle,
-                 uint32_t dwIconType,
-                 uint32_t dwButtonType) override;
-  CFX_WideString Response(const CFX_WideString& wsQuestion,
-                          const CFX_WideString& wsTitle,
-                          const CFX_WideString& wsDefaultAnswer,
-                          FX_BOOL bMark) override;
-
-  IFX_FileRead* DownloadURL(const CFX_WideString& wsURL) override;
-  FX_BOOL PostRequestURL(const CFX_WideString& wsURL,
-                         const CFX_WideString& wsData,
-                         const CFX_WideString& wsContentType,
-                         const CFX_WideString& wsEncode,
-                         const CFX_WideString& wsHeader,
-                         CFX_WideString& wsResponse) override;
-  FX_BOOL PutRequestURL(const CFX_WideString& wsURL,
-                        const CFX_WideString& wsData,
-                        const CFX_WideString& wsEncode) override;
-
-  void LoadString(int32_t iStringID, CFX_WideString& wsString) override;
-  IFWL_AdapterTimerMgr* GetTimerMgr() override;
-
-  CFX_ArrayTemplate<CPDFSDK_Environment*> m_pEnvList;
-
- protected:
-  FX_BOOL m_bJavaScriptInitialized;
-  std::unique_ptr<CXFA_FFApp> m_pXFAApp;
-  v8::Isolate* m_pIsolate;
-  CFX_WideString m_csAppType;
-};
-
-#endif  // FPDFSDK_FPDFXFA_FPDFXFA_APP_H_