Merge to XFA: Cleanup: Mark methods with the override keyword.

- Delete unneeded CFFL_ComboBox::CanCopy() and friends.
- Delete unneeded CFFL_FormFiller::CanCopy() and friends.
- Delete unneeded CFFL_TextField::CanCopy() and friends.
- Delete unneeded FormFiller::DoCopy() and friends.
- Rename CFFL_FormFiller::On{Set,Kill}Focus to avoid conflicts.

BUG=pdfium:185
TBR=thakis@chromium.org

Review URL: https://codereview.chromium.org/1283493004 .

(cherry picked from commit 3a3849176aa6e2db8baf2f9367b2d96c71815319)

Review URL: https://codereview.chromium.org/1279123006 .

5 files changed, 109 insertions, 133 deletions

diff --git a/fpdfsdk/include/formfiller/FFL_ComboBox.h b/fpdfsdk/include/formfiller/FFL_ComboBox.h
index 3d1855ceac..7355045c28 100644
--- a/fpdfsdk/include/formfiller/FFL_ComboBox.h
+++ b/fpdfsdk/include/formfiller/FFL_ComboBox.h
@@ -25,51 +25,42 @@ class CFFL_ComboBox : public CFFL_FormFiller,
                       public IPWL_Edit_Notify {
  public:
   CFFL_ComboBox(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pWidget);
-  virtual ~CFFL_ComboBox();
-
-  virtual PWL_CREATEPARAM GetCreateParam();
-  virtual CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
-                                 CPDFSDK_PageView* pPageView);
-
-  virtual FX_BOOL OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags);
-
-  virtual FX_BOOL IsDataChanged(CPDFSDK_PageView* pPageView);
-  virtual void SaveData(CPDFSDK_PageView* pPageView);
-
-  virtual void GetActionData(CPDFSDK_PageView* pPageView,
-                             CPDF_AAction::AActionType type,
-                             PDFSDK_FieldAction& fa);
-  virtual void SetActionData(CPDFSDK_PageView* pPageView,
-                             CPDF_AAction::AActionType type,
-                             const PDFSDK_FieldAction& fa);
-  virtual FX_BOOL IsActionDataChanged(CPDF_AAction::AActionType type,
-                                      const PDFSDK_FieldAction& faOld,
-                                      const PDFSDK_FieldAction& faNew);
-  virtual void SaveState(CPDFSDK_PageView* pPageView);
-  virtual void RestoreState(CPDFSDK_PageView* pPageView);
-
-  virtual CPWL_Wnd* ResetPDFWindow(CPDFSDK_PageView* pPageView,
-                                   FX_BOOL bRestoreValue);
-  virtual void OnKeyStroke(FX_BOOL bKeyDown, FX_UINT nFlag);
+  ~CFFL_ComboBox() override;
+
+  // CFFL_FormFiller:
+  PWL_CREATEPARAM GetCreateParam() override;
+  CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
+                         CPDFSDK_PageView* pPageView) override;
+  FX_BOOL OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags) override;
+  FX_BOOL IsDataChanged(CPDFSDK_PageView* pPageView) override;
+  void SaveData(CPDFSDK_PageView* pPageView) override;
+  void GetActionData(CPDFSDK_PageView* pPageView,
+                     CPDF_AAction::AActionType type,
+                     PDFSDK_FieldAction& fa) override;
+  void SetActionData(CPDFSDK_PageView* pPageView,
+                     CPDF_AAction::AActionType type,
+                     const PDFSDK_FieldAction& fa) override;
+  FX_BOOL IsActionDataChanged(CPDF_AAction::AActionType type,
+                              const PDFSDK_FieldAction& faOld,
+                              const PDFSDK_FieldAction& faNew) override;
+  void SaveState(CPDFSDK_PageView* pPageView) override;
+  void RestoreState(CPDFSDK_PageView* pPageView) override;
+  CPWL_Wnd* ResetPDFWindow(CPDFSDK_PageView* pPageView,
+                           FX_BOOL bRestoreValue) override;
+  void OnKeyStroke(FX_BOOL bKeyDown, FX_DWORD nFlag) override;
+
+  // IPWL_FocusHandler:
+  void OnSetFocus(CPWL_Wnd* pWnd) override;
+  void OnKillFocus(CPWL_Wnd* pWnd) override;
+
+  // IPWL_Edit_Notify:
+  void OnAddUndo(CPWL_Edit* pEdit) override;
 
   virtual FX_BOOL IsFieldFull(CPDFSDK_PageView* pPageView);
 
- public:
-  virtual void OnSetFocus(CPWL_Wnd* pWnd);
-  virtual void OnKillFocus(CPWL_Wnd* pWnd);
-
- public:
-  virtual void OnAddUndo(CPWL_Edit* pEdit);
-
- public:
-  virtual FX_BOOL CanCopy(CPDFSDK_Document* pDocument);
-  virtual FX_BOOL CanCut(CPDFSDK_Document* pDocument);
-  virtual FX_BOOL CanPaste(CPDFSDK_Document* pDocument);
-
  private:
   CFX_WideString GetSelectExportText();
 
- private:
   CBA_FontMap* m_pFontMap;
   FFL_ComboBoxState m_State;
 };
diff --git a/fpdfsdk/include/formfiller/FFL_FormFiller.h b/fpdfsdk/include/formfiller/FFL_FormFiller.h
index 5ed5265b6f..65e9beba97 100644
--- a/fpdfsdk/include/formfiller/FFL_FormFiller.h
+++ b/fpdfsdk/include/formfiller/FFL_FormFiller.h
@@ -10,18 +10,16 @@
 #include "FFL_IFormFiller.h"
 #include "FFL_CBA_Fontmap.h"
 
-class CPDFSDK_Annot;
-class CFFL_FormFiller;
-class CFFL_Notify;
 class CPDFDoc_Environment;
-class CPDFSDK_PageView;
+class CPDFSDK_Annot;
 class CPDFSDK_Document;
+class CPDFSDK_PageView;
 class CPDFSDK_Widget;
 
 class CFFL_FormFiller : public IPWL_Provider, public CPWL_TimerHandler {
  public:
   CFFL_FormFiller(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot);
-  virtual ~CFFL_FormFiller();
+  ~CFFL_FormFiller() override;
 
   virtual FX_RECT GetViewBBox(CPDFSDK_PageView* pPageView,
                               CPDFSDK_Annot* pAnnot);
@@ -78,23 +76,16 @@ class CFFL_FormFiller : public IPWL_Provider, public CPWL_TimerHandler {
                             FX_UINT nFlags);
   virtual FX_BOOL OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags);
 
-  virtual FX_BOOL OnSetFocus(CPDFSDK_Annot* pAnnot, FX_UINT nFlag);
-  virtual FX_BOOL OnKillFocus(CPDFSDK_Annot* pAnnot, FX_UINT nFlag);
-
-  virtual FX_BOOL CanCopy(CPDFSDK_Document* pDocument);
-  virtual FX_BOOL CanCut(CPDFSDK_Document* pDocument);
-  virtual FX_BOOL CanPaste(CPDFSDK_Document* pDocument);
-
-  virtual void DoCopy(CPDFSDK_Document* pDocument);
-  virtual void DoCut(CPDFSDK_Document* pDocument);
-  virtual void DoPaste(CPDFSDK_Document* pDocument);
+  FX_BOOL SetFocusForAnnot(CPDFSDK_Annot* pAnnot, FX_UINT nFlag);
+  FX_BOOL KillFocusForAnnot(CPDFSDK_Annot* pAnnot, FX_UINT nFlag);
 
   // CPWL_TimerHandler
-  virtual void TimerProc();
-  virtual IFX_SystemHandler* GetSystemHandler() const;
+  void TimerProc() override;
+  IFX_SystemHandler* GetSystemHandler() const override;
 
-  virtual CPDF_Matrix GetWindowMatrix(void* pAttachedData);
-  virtual CFX_WideString LoadPopupMenuString(int nIndex);
+  // IPWL_Provider
+  CPDF_Matrix GetWindowMatrix(void* pAttachedData) override;
+  CFX_WideString LoadPopupMenuString(int nIndex) override;
 
   virtual void GetActionData(CPDFSDK_PageView* pPageView,
                              CPDF_AAction::AActionType type,
@@ -112,7 +103,7 @@ class CFFL_FormFiller : public IPWL_Provider, public CPWL_TimerHandler {
   virtual CPWL_Wnd* ResetPDFWindow(CPDFSDK_PageView* pPageView,
                                    FX_BOOL bRestoreValue);
 
-  virtual void OnKeyStroke(FX_BOOL bKeyDown);
+  virtual void OnKeyStroke(FX_BOOL bKeyDown, FX_DWORD nFlag);
 
   CPDF_Matrix GetCurMatrix();
 
diff --git a/fpdfsdk/include/formfiller/FFL_IFormFiller.h b/fpdfsdk/include/formfiller/FFL_IFormFiller.h
index 560cef1fa8..1c1fd07c35 100644
--- a/fpdfsdk/include/formfiller/FFL_IFormFiller.h
+++ b/fpdfsdk/include/formfiller/FFL_IFormFiller.h
@@ -16,8 +16,8 @@ class CFFL_PrivateData;
 
 class CFFL_IFormFiller : public IPWL_Filler_Notify {
  public:
-  CFFL_IFormFiller(CPDFDoc_Environment* pApp);
-  virtual ~CFFL_IFormFiller();
+  explicit CFFL_IFormFiller(CPDFDoc_Environment* pApp);
+  ~CFFL_IFormFiller() override;
 
   virtual FX_BOOL Annot_HitTest(CPDFSDK_PageView* pPageView,
                                 CPDFSDK_Annot* pAnnot,
@@ -25,10 +25,10 @@ class CFFL_IFormFiller : public IPWL_Filler_Notify {
   virtual FX_RECT GetViewBBox(CPDFSDK_PageView* pPageView,
                               CPDFSDK_Annot* pAnnot);
   virtual void OnDraw(CPDFSDK_PageView* pPageView,
-                      /*HDC hDC,*/ CPDFSDK_Annot* pAnnot,
+                      CPDFSDK_Annot* pAnnot,
                       CFX_RenderDevice* pDevice,
                       CPDF_Matrix* pUser2Device,
-                      /*const CRect& rcWindow,*/ FX_DWORD dwFlags);
+                      FX_DWORD dwFlags);
 
   virtual void OnCreate(CPDFSDK_Annot* pAnnot);
   virtual void OnLoad(CPDFSDK_Annot* pAnnot);
@@ -79,27 +79,6 @@ class CFFL_IFormFiller : public IPWL_Filler_Notify {
   virtual FX_BOOL OnSetFocus(CPDFSDK_Annot* pAnnot, FX_UINT nFlag);
   virtual FX_BOOL OnKillFocus(CPDFSDK_Annot* pAnnot, FX_UINT nFlag);
 
-  virtual void QueryWherePopup(void* pPrivateData,
-                               FX_FLOAT fPopupMin,
-                               FX_FLOAT fPopupMax,
-                               int32_t& nRet,
-                               FX_FLOAT& fPopupRet);
-  virtual void OnBeforeKeyStroke(FX_BOOL bEditOrList,
-                                 void* pPrivateData,
-                                 int32_t nKeyCode,
-                                 CFX_WideString& strChange,
-                                 const CFX_WideString& strChangeEx,
-                                 int nSelStart,
-                                 int nSelEnd,
-                                 FX_BOOL bKeyDown,
-                                 FX_BOOL& bRC,
-                                 FX_BOOL& bExit,
-                                 FX_DWORD nFlag);
-  virtual void OnAfterKeyStroke(FX_BOOL bEditOrList,
-                                void* pPrivateData,
-                                FX_BOOL& bExit,
-                                FX_DWORD nFlag);
-
   virtual void OnPopupPreOpen(void* pPrivateData,
                               FX_BOOL& bExit,
                               FX_DWORD nFlag);
@@ -164,6 +143,28 @@ class CFFL_IFormFiller : public IPWL_Filler_Notify {
  private:
   using CFFL_Widget2Filler = std::map<CPDFSDK_Annot*, CFFL_FormFiller*>;
 
+  // IPWL_Filler_Notify:
+  void QueryWherePopup(void* pPrivateData,
+                       FX_FLOAT fPopupMin,
+                       FX_FLOAT fPopupMax,
+                       int32_t& nRet,
+                       FX_FLOAT& fPopupRet) override;
+  void OnBeforeKeyStroke(FX_BOOL bEditOrList,
+                         void* pPrivateData,
+                         int32_t nKeyCode,
+                         CFX_WideString& strChange,
+                         const CFX_WideString& strChangeEx,
+                         int nSelStart,
+                         int nSelEnd,
+                         FX_BOOL bKeyDown,
+                         FX_BOOL& bRC,
+                         FX_BOOL& bExit,
+                         FX_DWORD nFlag) override;
+  void OnAfterKeyStroke(FX_BOOL bEditOrList,
+                        void* pPrivateData,
+                        FX_BOOL& bExit,
+                        FX_DWORD nFlag) override;
+
   void UnRegisterFormFiller(CPDFSDK_Annot* pAnnot);
   void SetFocusAnnotTab(CPDFSDK_Annot* pWidget,
                         FX_BOOL bSameField,
diff --git a/fpdfsdk/include/formfiller/FFL_TextField.h b/fpdfsdk/include/formfiller/FFL_TextField.h
index 21ccd6fdce..e8013cdba1 100644
--- a/fpdfsdk/include/formfiller/FFL_TextField.h
+++ b/fpdfsdk/include/formfiller/FFL_TextField.h
@@ -26,46 +26,38 @@ class CFFL_TextField : public CFFL_FormFiller,
                        public IPWL_Edit_Notify {
  public:
   CFFL_TextField(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot);
-  virtual ~CFFL_TextField();
-
-  virtual PWL_CREATEPARAM GetCreateParam();
-  virtual CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
-                                 CPDFSDK_PageView* pPageView);
-
-  virtual FX_BOOL OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags);
-
-  virtual FX_BOOL IsDataChanged(CPDFSDK_PageView* pPageView);
-  virtual void SaveData(CPDFSDK_PageView* pPageView);
-
-  virtual void GetActionData(CPDFSDK_PageView* pPageView,
-                             CPDF_AAction::AActionType type,
-                             PDFSDK_FieldAction& fa);
-  virtual void SetActionData(CPDFSDK_PageView* pPageView,
-                             CPDF_AAction::AActionType type,
-                             const PDFSDK_FieldAction& fa);
-  virtual FX_BOOL IsActionDataChanged(CPDF_AAction::AActionType type,
-                                      const PDFSDK_FieldAction& faOld,
-                                      const PDFSDK_FieldAction& faNew);
-  virtual void SaveState(CPDFSDK_PageView* pPageView);
-  virtual void RestoreState(CPDFSDK_PageView* pPageView);
-
-  virtual CPWL_Wnd* ResetPDFWindow(CPDFSDK_PageView* pPageView,
-                                   FX_BOOL bRestoreValue);
+  ~CFFL_TextField() override;
+
+  // CFFL_FormFiller:
+  PWL_CREATEPARAM GetCreateParam() override;
+  CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
+                         CPDFSDK_PageView* pPageView) override;
+  FX_BOOL OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags) override;
+  FX_BOOL IsDataChanged(CPDFSDK_PageView* pPageView) override;
+  void SaveData(CPDFSDK_PageView* pPageView) override;
+  void GetActionData(CPDFSDK_PageView* pPageView,
+                     CPDF_AAction::AActionType type,
+                     PDFSDK_FieldAction& fa) override;
+  void SetActionData(CPDFSDK_PageView* pPageView,
+                     CPDF_AAction::AActionType type,
+                     const PDFSDK_FieldAction& fa) override;
+  FX_BOOL IsActionDataChanged(CPDF_AAction::AActionType type,
+                              const PDFSDK_FieldAction& faOld,
+                              const PDFSDK_FieldAction& faNew) override;
+  void SaveState(CPDFSDK_PageView* pPageView) override;
+  void RestoreState(CPDFSDK_PageView* pPageView) override;
+  CPWL_Wnd* ResetPDFWindow(CPDFSDK_PageView* pPageView,
+                           FX_BOOL bRestoreValue) override;
+
+  // IPWL_FocusHandler:
+  void OnSetFocus(CPWL_Wnd* pWnd) override;
+  void OnKillFocus(CPWL_Wnd* pWnd) override;
+
+  // IPWL_Edit_Notify:
+  void OnAddUndo(CPWL_Edit* pEdit) override;
 
   virtual FX_BOOL IsFieldFull(CPDFSDK_PageView* pPageView);
 
- public:
-  virtual void OnSetFocus(CPWL_Wnd* pWnd);
-  virtual void OnKillFocus(CPWL_Wnd* pWnd);
-
- public:
-  virtual void OnAddUndo(CPWL_Edit* pEdit);
-
- public:
-  virtual FX_BOOL CanCopy(CPDFSDK_Document* pDocument);
-  virtual FX_BOOL CanCut(CPDFSDK_Document* pDocument);
-  virtual FX_BOOL CanPaste(CPDFSDK_Document* pDocument);
-
  private:
   CBA_FontMap* m_pFontMap;
   FFL_TextFieldState m_State;
diff --git a/fpdfsdk/include/fsdk_baseform.h b/fpdfsdk/include/fsdk_baseform.h
index 2abafca0a6..96617c3f00 100644
--- a/fpdfsdk/include/fsdk_baseform.h
+++ b/fpdfsdk/include/fsdk_baseform.h
@@ -307,18 +307,19 @@ class CPDFSDK_InterForm : public CPDF_FormNotify {
   void SynchronizeField(CPDF_FormField* pFormField, FX_BOOL bSynchronizeElse);
 
  private:
-  virtual int BeforeValueChange(const CPDF_FormField* pField,
-                                CFX_WideString& csValue);
-  virtual int AfterValueChange(const CPDF_FormField* pField);
-  virtual int BeforeSelectionChange(const CPDF_FormField* pField,
-                                    CFX_WideString& csValue);
-  virtual int AfterSelectionChange(const CPDF_FormField* pField);
-  virtual int AfterCheckedStatusChange(const CPDF_FormField* pField,
-                                       const CFX_ByteArray& statusArray);
-  virtual int BeforeFormReset(const CPDF_InterForm* pForm);
-  virtual int AfterFormReset(const CPDF_InterForm* pForm);
-  virtual int BeforeFormImportData(const CPDF_InterForm* pForm);
-  virtual int AfterFormImportData(const CPDF_InterForm* pForm);
+  // CPDF_FormNotify
+  int BeforeValueChange(const CPDF_FormField* pField,
+                        CFX_WideString& csValue) override;
+  int AfterValueChange(const CPDF_FormField* pField) override;
+  int BeforeSelectionChange(const CPDF_FormField* pField,
+                            CFX_WideString& csValue) override;
+  int AfterSelectionChange(const CPDF_FormField* pField) override;
+  int AfterCheckedStatusChange(const CPDF_FormField* pField,
+                               const CFX_ByteArray& statusArray) override;
+  int BeforeFormReset(const CPDF_InterForm* pForm) override;
+  int AfterFormReset(const CPDF_InterForm* pForm) override;
+  int BeforeFormImportData(const CPDF_InterForm* pForm) override;
+  int AfterFormImportData(const CPDF_InterForm* pForm) override;
 
   FX_BOOL FDFToURLEncodedData(CFX_WideString csFDFFile,
                               CFX_WideString csTxtFile);