Remove FFI_ from CPDFSDK_Environment method names

fpdfsdk/include/cpdfsdk_environment.h

Index: fpdfsdk/include/cpdfsdk_environment.h
diff --git a/fpdfsdk/include/cpdfsdk_environment.h b/fpdfsdk/include/cpdfsdk_environment.h
index 7fd146a043bace5162ae5a1eb46c7986e57e8a2b..fe63ecad1389e991fa6f93256902bdf1be25b7fe 100644
--- a/fpdfsdk/include/cpdfsdk_environment.h
+++ b/fpdfsdk/include/cpdfsdk_environment.h
@@ -30,41 +30,41 @@ class CPDFSDK_Environment final {
   CPDFSDK_Environment(UnderlyingDocumentType* pDoc, FPDF_FORMFILLINFO* pFFinfo);
   ~CPDFSDK_Environment();
 
-  void FFI_Invalidate(FPDF_PAGE page,
-                      double left,
-                      double top,
-                      double right,
-                      double bottom) {
+  void Invalidate(FPDF_PAGE page,
+                  double left,
+                  double top,
+                  double right,
+                  double bottom) {
     if (m_pInfo && m_pInfo->FFI_Invalidate)
       m_pInfo->FFI_Invalidate(m_pInfo, page, left, top, right, bottom);
   }
 
-  void FFI_OutputSelectedRect(FPDF_PAGE page,
-                              double left,
-                              double top,
-                              double right,
-                              double bottom) {
+  void OutputSelectedRect(FPDF_PAGE page,
+                          double left,
+                          double top,
+                          double right,
+                          double bottom) {
     if (m_pInfo && m_pInfo->FFI_OutputSelectedRect)
       m_pInfo->FFI_OutputSelectedRect(m_pInfo, page, left, top, right, bottom);
   }
 
-  void FFI_SetCursor(int nCursorType) {
+  void SetCursor(int nCursorType) {
     if (m_pInfo && m_pInfo->FFI_SetCursor)
       m_pInfo->FFI_SetCursor(m_pInfo, nCursorType);
   }
 
-  int FFI_SetTimer(int uElapse, TimerCallback lpTimerFunc) {
+  int SetTimer(int uElapse, TimerCallback lpTimerFunc) {
     if (m_pInfo && m_pInfo->FFI_SetTimer)
       return m_pInfo->FFI_SetTimer(m_pInfo, uElapse, lpTimerFunc);
     return -1;
   }
 
-  void FFI_KillTimer(int nTimerID) {
+  void KillTimer(int nTimerID) {
     if (m_pInfo && m_pInfo->FFI_KillTimer)
       m_pInfo->FFI_KillTimer(m_pInfo, nTimerID);
   }
 
-  FX_SYSTEMTIME FFI_GetLocalTime() const {
+  FX_SYSTEMTIME GetLocalTime() const {
     FX_SYSTEMTIME fxtime;
     if (m_pInfo && m_pInfo->FFI_GetLocalTime) {
       FPDF_SYSTEMTIME systime = m_pInfo->FFI_GetLocalTime(m_pInfo);
@@ -80,120 +80,114 @@ class CPDFSDK_Environment final {
     return fxtime;
   }
 
-  void FFI_OnChange() {
+  void OnChange() {
     if (m_pInfo && m_pInfo->FFI_OnChange)
       m_pInfo->FFI_OnChange(m_pInfo);
   }
 
-  FX_BOOL FFI_IsSHIFTKeyDown(uint32_t nFlag) const {
+  FX_BOOL IsSHIFTKeyDown(uint32_t nFlag) const {
     return (nFlag & FWL_EVENTFLAG_ShiftKey) != 0;
   }
 
-  FX_BOOL FFI_IsCTRLKeyDown(uint32_t nFlag) const {
+  FX_BOOL IsCTRLKeyDown(uint32_t nFlag) const {
     return (nFlag & FWL_EVENTFLAG_ControlKey) != 0;
   }
 
-  FX_BOOL FFI_IsALTKeyDown(uint32_t nFlag) const {
+  FX_BOOL IsALTKeyDown(uint32_t nFlag) const {
     return (nFlag & FWL_EVENTFLAG_AltKey) != 0;
   }
 
-  FPDF_PAGE FFI_GetPage(FPDF_DOCUMENT document, int nPageIndex) {
+  FPDF_PAGE GetPage(FPDF_DOCUMENT document, int nPageIndex) {
     if (m_pInfo && m_pInfo->FFI_GetPage)
       return m_pInfo->FFI_GetPage(m_pInfo, document, nPageIndex);
     return nullptr;
   }
 
-  FPDF_PAGE FFI_GetCurrentPage(FPDF_DOCUMENT document) {
+  FPDF_PAGE GetCurrentPage(FPDF_DOCUMENT document) {
     if (m_pInfo && m_pInfo->FFI_GetCurrentPage)
       return m_pInfo->FFI_GetCurrentPage(m_pInfo, document);
     return nullptr;
   }
 
-  int FFI_GetRotation(FPDF_PAGE page) {
-    if (m_pInfo && m_pInfo->FFI_GetRotation)
-      return m_pInfo->FFI_GetRotation(m_pInfo, page);
-    return 0;
-  }
-
-  void FFI_ExecuteNamedAction(const FX_CHAR* namedAction) {
+  void ExecuteNamedAction(const FX_CHAR* namedAction) {
     if (m_pInfo && m_pInfo->FFI_ExecuteNamedAction)
       m_pInfo->FFI_ExecuteNamedAction(m_pInfo, namedAction);
   }
 
-  void FFI_OnSetFieldInputFocus(void* field,
-                                FPDF_WIDESTRING focusText,
-                                FPDF_DWORD nTextLen,
-                                FX_BOOL bFocus) {
+  void OnSetFieldInputFocus(void* field,
+                            FPDF_WIDESTRING focusText,
+                            FPDF_DWORD nTextLen,
+                            FX_BOOL bFocus) {
     if (m_pInfo && m_pInfo->FFI_SetTextFieldFocus)
       m_pInfo->FFI_SetTextFieldFocus(m_pInfo, focusText, nTextLen, bFocus);
   }
 
-  void FFI_DoURIAction(const FX_CHAR* bsURI) {
+  void DoURIAction(const FX_CHAR* bsURI) {
     if (m_pInfo && m_pInfo->FFI_DoURIAction)
       m_pInfo->FFI_DoURIAction(m_pInfo, bsURI);
   }
 
-  void FFI_DoGoToAction(int nPageIndex,
-                        int zoomMode,
-                        float* fPosArray,
-                        int sizeOfArray) {
+  void DoGoToAction(int nPageIndex,
+                    int zoomMode,
+                    float* fPosArray,
+                    int sizeOfArray) {
     if (m_pInfo && m_pInfo->FFI_DoGoToAction)
       m_pInfo->FFI_DoGoToAction(m_pInfo, nPageIndex, zoomMode, fPosArray,
                                 sizeOfArray);
   }
 
 #ifdef PDF_ENABLE_XFA
-  void FFI_DisplayCaret(FPDF_PAGE page,
-                        FPDF_BOOL bVisible,
-                        double left,
-                        double top,
-                        double right,
-                        double bottom) {
+  void DisplayCaret(FPDF_PAGE page,
+                    FPDF_BOOL bVisible,
+                    double left,
+                    double top,
+                    double right,
+                    double bottom) {
     if (m_pInfo && m_pInfo->FFI_DisplayCaret)
       m_pInfo->FFI_DisplayCaret(m_pInfo, page, bVisible, left, top, right,
                                 bottom);
   }
 
-  int FFI_GetCurrentPageIndex(FPDF_DOCUMENT document) {
-    if (!m_pInfo || !m_pInfo->FFI_GetCurrentPageIndex) {
+  int GetCurrentPageIndex(FPDF_DOCUMENT document) {
+    if (!m_pInfo || !m_pInfo->FFI_GetCurrentPageIndex)
       return -1;
-    }
     return m_pInfo->FFI_GetCurrentPageIndex(m_pInfo, document);
   }
 
-  void FFI_SetCurrentPage(FPDF_DOCUMENT document, int iCurPage) {
+  void SetCurrentPage(FPDF_DOCUMENT document, int iCurPage) {
     if (m_pInfo && m_pInfo->FFI_SetCurrentPage)
       m_pInfo->FFI_SetCurrentPage(m_pInfo, document, iCurPage);
   }
 
+  // TODO(dsinclair): This should probably change to PDFium?
   CFX_WideString FFI_GetAppName() const { return CFX_WideString(L"Acrobat"); }
 
-  CFX_WideString FFI_GetPlatform() {
-    if (m_pInfo && m_pInfo->FFI_GetPlatform) {
-      int nRequiredLen = m_pInfo->FFI_GetPlatform(m_pInfo, nullptr, 0);
-      if (nRequiredLen <= 0)
-        return L"";
-
-      char* pbuff = new char[nRequiredLen];
-      memset(pbuff, 0, nRequiredLen);
-      int nActualLen = m_pInfo->FFI_GetPlatform(m_pInfo, pbuff, nRequiredLen);
-      if (nActualLen <= 0 || nActualLen > nRequiredLen) {
-        delete[] pbuff;
-        return L"";
-      }
-      CFX_ByteString bsRet = CFX_ByteString(pbuff, nActualLen);
-      CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
-          (unsigned short*)bsRet.GetBuffer(bsRet.GetLength()),
-          bsRet.GetLength() / sizeof(unsigned short));
+  CFX_WideString GetPlatform() {
+    if (!m_pInfo || !m_pInfo->FFI_GetPlatform)
+      return L"";
+
+    int nRequiredLen = m_pInfo->FFI_GetPlatform(m_pInfo, nullptr, 0);
+    if (nRequiredLen <= 0)
+      return L"";
+
+    char* pbuff = new char[nRequiredLen];
+    memset(pbuff, 0, nRequiredLen);
+    int nActualLen = m_pInfo->FFI_GetPlatform(m_pInfo, pbuff, nRequiredLen);
+    if (nActualLen <= 0 || nActualLen > nRequiredLen) {
       delete[] pbuff;
-      return wsRet;
+      return L"";
     }
-    return L"";
+    CFX_ByteString bsRet = CFX_ByteString(pbuff, nActualLen);
+    CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
+        (unsigned short*)bsRet.GetBuffer(bsRet.GetLength()),
+        bsRet.GetLength() / sizeof(unsigned short));
+    delete[] pbuff;
+    return wsRet;
   }
 
-  void FFI_GotoURL(FPDF_DOCUMENT document,
-                   const CFX_WideStringC& wsURL,
-                   FX_BOOL bAppend) {
+  void GotoURL(FPDF_DOCUMENT document,
+               const CFX_WideStringC& wsURL,
+               FX_BOOL bAppend) {
     if (m_pInfo && m_pInfo->FFI_GotoURL) {
       CFX_ByteString bsTo = CFX_WideString(wsURL).UTF16LE_Encode();
       FPDF_WIDESTRING pTo = (FPDF_WIDESTRING)bsTo.GetBuffer(wsURL.GetLength());
@@ -202,7 +196,7 @@ class CPDFSDK_Environment final {
     }
   }
 
-  void FFI_GetPageViewRect(FPDF_PAGE page, FS_RECTF& dstRect) {
+  void GetPageViewRect(FPDF_PAGE page, FS_RECTF& dstRect) {
     if (m_pInfo && m_pInfo->FFI_GetPageViewRect) {
       double left;
       double top;
@@ -217,157 +211,147 @@ class CPDFSDK_Environment final {
     }
   }
 
-  FX_BOOL FFI_PopupMenu(FPDF_PAGE page,
-                        FPDF_WIDGET hWidget,
-                        int menuFlag,
-                        CFX_PointF ptPopup,
-                        const CFX_PointF* pRectExclude) {
+  FX_BOOL PopupMenu(FPDF_PAGE page,
+                    FPDF_WIDGET hWidget,
+                    int menuFlag,
+                    CFX_PointF ptPopup,
+                    const CFX_PointF* pRectExclude) {
     if (m_pInfo && m_pInfo->FFI_PopupMenu)
       return m_pInfo->FFI_PopupMenu(m_pInfo, page, hWidget, menuFlag, ptPopup.x,
                                     ptPopup.y);
     return FALSE;
   }
 
-  void FFI_Alert(FPDF_WIDESTRING Msg,
-                 FPDF_WIDESTRING Title,
-                 int Type,
-                 int Icon) {
+  void Alert(FPDF_WIDESTRING Msg, FPDF_WIDESTRING Title, int Type, int Icon) {
     if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->app_alert)
       m_pInfo->m_pJsPlatform->app_alert(m_pInfo->m_pJsPlatform, Msg, Title,
                                         Type, Icon);
   }
 
-  void FFI_EmailTo(FPDF_FILEHANDLER* fileHandler,
-                   FPDF_WIDESTRING pTo,
-                   FPDF_WIDESTRING pSubject,
-                   FPDF_WIDESTRING pCC,
-                   FPDF_WIDESTRING pBcc,
-                   FPDF_WIDESTRING pMsg) {
+  void EmailTo(FPDF_FILEHANDLER* fileHandler,
+               FPDF_WIDESTRING pTo,
+               FPDF_WIDESTRING pSubject,
+               FPDF_WIDESTRING pCC,
+               FPDF_WIDESTRING pBcc,
+               FPDF_WIDESTRING pMsg) {
     if (m_pInfo && m_pInfo->FFI_EmailTo)
       m_pInfo->FFI_EmailTo(m_pInfo, fileHandler, pTo, pSubject, pCC, pBcc,
                            pMsg);
   }
 
-  void FFI_UploadTo(FPDF_FILEHANDLER* fileHandler,
-                    int fileFlag,
-                    FPDF_WIDESTRING uploadTo) {
+  void UploadTo(FPDF_FILEHANDLER* fileHandler,
+                int fileFlag,
+                FPDF_WIDESTRING uploadTo) {
     if (m_pInfo && m_pInfo->FFI_UploadTo)
       m_pInfo->FFI_UploadTo(m_pInfo, fileHandler, fileFlag, uploadTo);
   }
 
-  FPDF_FILEHANDLER* FFI_OpenFile(int fileType,
-                                 FPDF_WIDESTRING wsURL,
-                                 const char* mode) {
+  FPDF_FILEHANDLER* OpenFile(int fileType,
+                             FPDF_WIDESTRING wsURL,
+                             const char* mode) {
     if (m_pInfo && m_pInfo->FFI_OpenFile)
       return m_pInfo->FFI_OpenFile(m_pInfo, fileType, wsURL, mode);
     return nullptr;
   }
 
-  CFX_WideString FFI_GetFilePath(FPDF_FILEHANDLER* pFileHandler) const {
-    return L"";
-  }
-
-  int FFI_GetDocumentCount() const { return 0; }
-  int FFI_GetCurDocument() const { return 0; }
+  IFX_FileRead* DownloadFromURL(const FX_WCHAR* url) {
+    if (!m_pInfo || !m_pInfo->FFI_DownloadFromURL)
+      return nullptr;
 
-  IFX_FileRead* FFI_DownloadFromURL(const FX_WCHAR* url) {
-    if (m_pInfo && m_pInfo->FFI_DownloadFromURL) {
-      CFX_ByteString bstrURL = CFX_WideString(url).UTF16LE_Encode();
-      FPDF_WIDESTRING wsURL =
-          (FPDF_WIDESTRING)bstrURL.GetBuffer(bstrURL.GetLength());
+    CFX_ByteString bstrURL = CFX_WideString(url).UTF16LE_Encode();
+    FPDF_WIDESTRING wsURL =
+        (FPDF_WIDESTRING)bstrURL.GetBuffer(bstrURL.GetLength());
 
-      FPDF_LPFILEHANDLER fileHandler =
-          m_pInfo->FFI_DownloadFromURL(m_pInfo, wsURL);
+    FPDF_LPFILEHANDLER fileHandler =
+        m_pInfo->FFI_DownloadFromURL(m_pInfo, wsURL);
 
-      return new CFPDF_FileStream(fileHandler);
-    }
-    return nullptr;
+    return new CFPDF_FileStream(fileHandler);
   }
 
-  CFX_WideString FFI_PostRequestURL(const FX_WCHAR* wsURL,
-                                    const FX_WCHAR* wsData,
-                                    const FX_WCHAR* wsContentType,
-                                    const FX_WCHAR* wsEncode,
-                                    const FX_WCHAR* wsHeader) {
-    if (m_pInfo && m_pInfo->FFI_PostRequestURL) {
-      CFX_ByteString bsURL = CFX_WideString(wsURL).UTF16LE_Encode();
-      FPDF_WIDESTRING URL = (FPDF_WIDESTRING)bsURL.GetBuffer(bsURL.GetLength());
+  CFX_WideString PostRequestURL(const FX_WCHAR* wsURL,
+                                const FX_WCHAR* wsData,
+                                const FX_WCHAR* wsContentType,
+                                const FX_WCHAR* wsEncode,
+                                const FX_WCHAR* wsHeader) {
+    if (!m_pInfo || !m_pInfo->FFI_PostRequestURL)
+      return L"";
 
-      CFX_ByteString bsData = CFX_WideString(wsData).UTF16LE_Encode();
-      FPDF_WIDESTRING data =
-          (FPDF_WIDESTRING)bsData.GetBuffer(bsData.GetLength());
+    CFX_ByteString bsURL = CFX_WideString(wsURL).UTF16LE_Encode();
+    FPDF_WIDESTRING URL = (FPDF_WIDESTRING)bsURL.GetBuffer(bsURL.GetLength());
 
-      CFX_ByteString bsContentType =
-          CFX_WideString(wsContentType).UTF16LE_Encode();
-      FPDF_WIDESTRING contentType =
-          (FPDF_WIDESTRING)bsContentType.GetBuffer(bsContentType.GetLength());
+    CFX_ByteString bsData = CFX_WideString(wsData).UTF16LE_Encode();
+    FPDF_WIDESTRING data =
+        (FPDF_WIDESTRING)bsData.GetBuffer(bsData.GetLength());
 
-      CFX_ByteString bsEncode = CFX_WideString(wsEncode).UTF16LE_Encode();
-      FPDF_WIDESTRING encode =
-          (FPDF_WIDESTRING)bsEncode.GetBuffer(bsEncode.GetLength());
+    CFX_ByteString bsContentType =
+        CFX_WideString(wsContentType).UTF16LE_Encode();
+    FPDF_WIDESTRING contentType =
+        (FPDF_WIDESTRING)bsContentType.GetBuffer(bsContentType.GetLength());
 
-      CFX_ByteString bsHeader = CFX_WideString(wsHeader).UTF16LE_Encode();
-      FPDF_WIDESTRING header =
-          (FPDF_WIDESTRING)bsHeader.GetBuffer(bsHeader.GetLength());
+    CFX_ByteString bsEncode = CFX_WideString(wsEncode).UTF16LE_Encode();
+    FPDF_WIDESTRING encode =
+        (FPDF_WIDESTRING)bsEncode.GetBuffer(bsEncode.GetLength());
 
-      FPDF_BSTR response;
-      FPDF_BStr_Init(&response);
-      m_pInfo->FFI_PostRequestURL(m_pInfo, URL, data, contentType, encode,
-                                  header, &response);
+    CFX_ByteString bsHeader = CFX_WideString(wsHeader).UTF16LE_Encode();
+    FPDF_WIDESTRING header =
+        (FPDF_WIDESTRING)bsHeader.GetBuffer(bsHeader.GetLength());
 
-      CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
-          (unsigned short*)response.str, response.len / sizeof(unsigned short));
-      FPDF_BStr_Clear(&response);
+    FPDF_BSTR response;
+    FPDF_BStr_Init(&response);
+    m_pInfo->FFI_PostRequestURL(m_pInfo, URL, data, contentType, encode, header,
+                                &response);
 
-      return wsRet;
-    }
-    return L"";
+    CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
+        (unsigned short*)response.str, response.len / sizeof(unsigned short));
+    FPDF_BStr_Clear(&response);
+
+    return wsRet;
   }
 
-  FPDF_BOOL FFI_PutRequestURL(const FX_WCHAR* wsURL,
-                              const FX_WCHAR* wsData,
-                              const FX_WCHAR* wsEncode) {
-    if (m_pInfo && m_pInfo->FFI_PutRequestURL) {
-      CFX_ByteString bsURL = CFX_WideString(wsURL).UTF16LE_Encode();
-      FPDF_WIDESTRING URL = (FPDF_WIDESTRING)bsURL.GetBuffer(bsURL.GetLength());
+  FPDF_BOOL PutRequestURL(const FX_WCHAR* wsURL,
+                          const FX_WCHAR* wsData,
+                          const FX_WCHAR* wsEncode) {
+    if (!m_pInfo || !m_pInfo->FFI_PutRequestURL)
+      return FALSE;
 
-      CFX_ByteString bsData = CFX_WideString(wsData).UTF16LE_Encode();
-      FPDF_WIDESTRING data =
-          (FPDF_WIDESTRING)bsData.GetBuffer(bsData.GetLength());
+    CFX_ByteString bsURL = CFX_WideString(wsURL).UTF16LE_Encode();
+    FPDF_WIDESTRING URL = (FPDF_WIDESTRING)bsURL.GetBuffer(bsURL.GetLength());
 
-      CFX_ByteString bsEncode = CFX_WideString(wsEncode).UTF16LE_Encode();
-      FPDF_WIDESTRING encode =
-          (FPDF_WIDESTRING)bsEncode.GetBuffer(bsEncode.GetLength());
+    CFX_ByteString bsData = CFX_WideString(wsData).UTF16LE_Encode();
+    FPDF_WIDESTRING data =
+        (FPDF_WIDESTRING)bsData.GetBuffer(bsData.GetLength());
 
-      return m_pInfo->FFI_PutRequestURL(m_pInfo, URL, data, encode);
-    }
-    return FALSE;
+    CFX_ByteString bsEncode = CFX_WideString(wsEncode).UTF16LE_Encode();
+    FPDF_WIDESTRING encode =
+        (FPDF_WIDESTRING)bsEncode.GetBuffer(bsEncode.GetLength());
+
+    return m_pInfo->FFI_PutRequestURL(m_pInfo, URL, data, encode);
   }
 
-  CFX_WideString FFI_GetLanguage() {
-    if (m_pInfo && m_pInfo->FFI_GetLanguage) {
-      int nRequiredLen = m_pInfo->FFI_GetLanguage(m_pInfo, nullptr, 0);
-      if (nRequiredLen <= 0)
-        return L"";
-
-      char* pbuff = new char[nRequiredLen];
-      memset(pbuff, 0, nRequiredLen);
-      int nActualLen = m_pInfo->FFI_GetLanguage(m_pInfo, pbuff, nRequiredLen);
-      if (nActualLen <= 0 || nActualLen > nRequiredLen) {
-        delete[] pbuff;
-        return L"";
-      }
-      CFX_ByteString bsRet = CFX_ByteString(pbuff, nActualLen);
-      CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
-          (unsigned short*)bsRet.GetBuffer(bsRet.GetLength()),
-          bsRet.GetLength() / sizeof(unsigned short));
+  CFX_WideString GetLanguage() {
+    if (!m_pInfo || !m_pInfo->FFI_GetLanguage)
+      return L"";
+
+    int nRequiredLen = m_pInfo->FFI_GetLanguage(m_pInfo, nullptr, 0);
+    if (nRequiredLen <= 0)
+      return L"";
+
+    char* pbuff = new char[nRequiredLen];
+    memset(pbuff, 0, nRequiredLen);
+    int nActualLen = m_pInfo->FFI_GetLanguage(m_pInfo, pbuff, nRequiredLen);
+    if (nActualLen <= 0 || nActualLen > nRequiredLen) {
       delete[] pbuff;
-      return wsRet;
+      return L"";
     }
-    return L"";
+    CFX_ByteString bsRet = CFX_ByteString(pbuff, nActualLen);
+    CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
+        (unsigned short*)bsRet.GetBuffer(bsRet.GetLength()),
+        bsRet.GetLength() / sizeof(unsigned short));
+    delete[] pbuff;
+    return wsRet;
   }
 
-  void FFI_PageEvent(int iPageCount, uint32_t dwEventType) const {
+  void PageEvent(int iPageCount, uint32_t dwEventType) const {
     if (m_pInfo && m_pInfo->FFI_PageEvent)
       m_pInfo->FFI_PageEvent(m_pInfo, iPageCount, dwEventType);
   }