Merge to XFA: Use override in more classes in core/

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1292613003 .

(cherry picked from commit c2c3f7b5f0396409451a9d344f35ec1929a76e9f)

Review URL: https://codereview.chromium.org/1296043002 .

4 files changed, 65 insertions, 60 deletions

diff --git a/core/include/fxge/fpf.h b/core/include/fxge/fpf.h
index efa001e916..e65fae0bbd 100644
--- a/core/include/fxge/fpf.h
+++ b/core/include/fxge/fpf.h
@@ -9,18 +9,21 @@
 
 #include "../fxcrt/fx_coordinates.h"
 
-class IFPF_DeviceModule;
 class IFPF_FontMgr;
-class IFPF_Font;
+
 class IFPF_DeviceModule {
  public:
   virtual ~IFPF_DeviceModule() {}
   virtual void Destroy() = 0;
   virtual IFPF_FontMgr* GetFontMgr() = 0;
 };
+
 IFPF_DeviceModule* FPF_GetDeviceModule();
+
 #define FPF_MATCHFONT_REPLACEANSI 1
+
 typedef struct FPF_HFONT_ { void* pData; } * FPF_HFONT;
+
 class IFPF_Font {
  public:
   virtual void Release() = 0;
@@ -47,8 +50,9 @@ class IFPF_Font {
                                FX_DWORD dwSize) = 0;
 
  protected:
-  ~IFPF_Font() {}
+  virtual ~IFPF_Font() {}
 };
+
 class IFPF_FontMgr {
  public:
   virtual ~IFPF_FontMgr() {}
diff --git a/core/include/fxge/fx_dib.h b/core/include/fxge/fx_dib.h
index ddc47d3db5..818aaac520 100644
--- a/core/include/fxge/fx_dib.h
+++ b/core/include/fxge/fx_dib.h
@@ -69,6 +69,8 @@ typedef FX_DWORD FX_CMYK;
 class CFX_ClipRgn;
 class CFX_DIBSource;
 class CFX_DIBitmap;
+class CStretchEngine;
+
 #define FXSYS_RGB(r, g, b) ((r) | ((g) << 8) | ((b) << 16))
 #define FXSYS_GetRValue(rgb) ((rgb)&0xff)
 #define FXSYS_GetGValue(rgb) (((rgb) >> 8) & 0xff)
@@ -281,11 +283,9 @@ class CFX_DIBSource {
 };
 class CFX_DIBitmap : public CFX_DIBSource {
  public:
-  virtual ~CFX_DIBitmap();
-
   CFX_DIBitmap();
-
-  CFX_DIBitmap(const CFX_DIBitmap& src);
+  explicit CFX_DIBitmap(const CFX_DIBitmap& src);
+  ~CFX_DIBitmap() override;
 
   FX_BOOL Create(int width,
                  int height,
@@ -295,19 +295,18 @@ class CFX_DIBitmap : public CFX_DIBSource {
 
   FX_BOOL Copy(const CFX_DIBSource* pSrc);
 
-  virtual uint8_t* GetBuffer() const { return m_pBuffer; }
-
-  virtual const uint8_t* GetScanline(int line) const {
+  // CFX_DIBSource
+  uint8_t* GetBuffer() const override { return m_pBuffer; }
+  const uint8_t* GetScanline(int line) const override {
     return m_pBuffer ? m_pBuffer + line * m_Pitch : NULL;
   }
-
-  virtual void DownSampleScanline(int line,
-                                  uint8_t* dest_scan,
-                                  int dest_bpp,
-                                  int dest_width,
-                                  FX_BOOL bFlipX,
-                                  int clip_left,
-                                  int clip_width) const;
+  void DownSampleScanline(int line,
+                          uint8_t* dest_scan,
+                          int dest_bpp,
+                          int dest_width,
+                          FX_BOOL bFlipX,
+                          int clip_left,
+                          int clip_width) const override;
 
   void TakeOver(CFX_DIBitmap* pSrcBitmap);
 
@@ -407,12 +406,12 @@ class CFX_DIBExtractor {
  private:
   CFX_DIBitmap* m_pBitmap;
 };
+
 typedef CFX_CountRef<CFX_DIBitmap> CFX_DIBitmapRef;
 class CFX_FilteredDIB : public CFX_DIBSource {
  public:
   CFX_FilteredDIB();
-
-  ~CFX_FilteredDIB();
+  ~CFX_FilteredDIB() override;
 
   void LoadSrc(const CFX_DIBSource* pSrc, FX_BOOL bAutoDropSrc = FALSE);
 
@@ -429,14 +428,15 @@ class CFX_FilteredDIB : public CFX_DIBSource {
                                     int Bpp) const = 0;
 
  protected:
-  virtual const uint8_t* GetScanline(int line) const;
-  virtual void DownSampleScanline(int line,
-                                  uint8_t* dest_scan,
-                                  int dest_bpp,
-                                  int dest_width,
-                                  FX_BOOL bFlipX,
-                                  int clip_left,
-                                  int clip_width) const;
+  // CFX_DIBSource
+  const uint8_t* GetScanline(int line) const override;
+  void DownSampleScanline(int line,
+                          uint8_t* dest_scan,
+                          int dest_bpp,
+                          int dest_width,
+                          FX_BOOL bFlipX,
+                          int clip_left,
+                          int clip_width) const override;
 
   const CFX_DIBSource* m_pSrc;
 
@@ -444,6 +444,7 @@ class CFX_FilteredDIB : public CFX_DIBSource {
 
   uint8_t* m_pScanline;
 };
+
 class IFX_ScanlineComposer {
  public:
   virtual ~IFX_ScanlineComposer() {}
@@ -514,11 +515,11 @@ class CFX_ScanlineCompositor {
   int m_CacheSize;
   FX_BOOL m_bRgbByteOrder;
 };
+
 class CFX_BitmapComposer : public IFX_ScanlineComposer {
  public:
   CFX_BitmapComposer();
-
-  ~CFX_BitmapComposer();
+  ~CFX_BitmapComposer() override;
 
   void Compose(CFX_DIBitmap* pDest,
                const CFX_ClipRgn* pClipRgn,
@@ -533,14 +534,15 @@ class CFX_BitmapComposer : public IFX_ScanlineComposer {
                void* pIccTransform = NULL,
                int blend_type = FXDIB_BLEND_NORMAL);
 
-  virtual FX_BOOL SetInfo(int width,
-                          int height,
-                          FXDIB_Format src_format,
-                          FX_DWORD* pSrcPalette);
+  // IFX_ScanlineComposer
+  FX_BOOL SetInfo(int width,
+                  int height,
+                  FXDIB_Format src_format,
+                  FX_DWORD* pSrcPalette) override;
 
-  virtual void ComposeScanline(int line,
-                               const uint8_t* scanline,
-                               const uint8_t* scan_extra_alpha);
+  void ComposeScanline(int line,
+                       const uint8_t* scanline,
+                       const uint8_t* scan_extra_alpha) override;
 
  protected:
   void DoCompose(uint8_t* dest_scan,
@@ -569,20 +571,21 @@ class CFX_BitmapComposer : public IFX_ScanlineComposer {
   uint8_t* m_pAddClipScan;
   uint8_t* m_pScanlineAlphaV;
 };
+
 class CFX_BitmapStorer : public IFX_ScanlineComposer {
  public:
   CFX_BitmapStorer();
+  ~CFX_BitmapStorer() override;
 
-  ~CFX_BitmapStorer();
+  // IFX_ScanlineComposer
+  void ComposeScanline(int line,
+                       const uint8_t* scanline,
+                       const uint8_t* scan_extra_alpha) override;
 
-  virtual void ComposeScanline(int line,
-                               const uint8_t* scanline,
-                               const uint8_t* scan_extra_alpha);
-
-  virtual FX_BOOL SetInfo(int width,
-                          int height,
-                          FXDIB_Format src_format,
-                          FX_DWORD* pSrcPalette);
+  FX_BOOL SetInfo(int width,
+                  int height,
+                  FXDIB_Format src_format,
+                  FX_DWORD* pSrcPalette) override;
 
   CFX_DIBitmap* GetBitmap() { return m_pBitmap; }
 
@@ -593,7 +596,7 @@ class CFX_BitmapStorer : public IFX_ScanlineComposer {
  private:
   CFX_DIBitmap* m_pBitmap;
 };
-class CStretchEngine;
+
 class CFX_ImageStretcher {
  public:
   CFX_ImageStretcher();
diff --git a/core/include/fxge/fx_font.h b/core/include/fxge/fx_font.h
index 835a018112..e0c6e31542 100644
--- a/core/include/fxge/fx_font.h
+++ b/core/include/fxge/fx_font.h
@@ -278,7 +278,7 @@ class IFX_AdditionalFontEnum {
 };
 class CFX_FontMapper {
  public:
-  CFX_FontMapper(CFX_FontMgr* mgr);
+  explicit CFX_FontMapper(CFX_FontMgr* mgr);
   ~CFX_FontMapper();
 
   void SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo);
@@ -326,6 +326,7 @@ class CFX_FontMapper {
   IFX_FontEnumerator* m_pFontEnumerator;
   CFX_FontMgr* const m_pFontMgr;
 };
+
 class IFX_SystemFontInfo {
  public:
   static IFX_SystemFontInfo* CreateDefault();
@@ -356,12 +357,13 @@ class IFX_SystemFontInfo {
   virtual void* RetainFont(void* hFont) { return NULL; }
 
  protected:
-  ~IFX_SystemFontInfo() {}
+  virtual ~IFX_SystemFontInfo() {}
 };
+
 class CFX_FolderFontInfo : public IFX_SystemFontInfo {
  public:
   CFX_FolderFontInfo();
-  virtual ~CFX_FolderFontInfo();
+  ~CFX_FolderFontInfo() override;
 
   void AddPath(const CFX_ByteStringC& path);
 
diff --git a/core/include/fxge/fx_ge.h b/core/include/fxge/fx_ge.h
index 0aa3f17d4d..23be3648d1 100644
--- a/core/include/fxge/fx_ge.h
+++ b/core/include/fxge/fx_ge.h
@@ -10,17 +10,12 @@
 #include "fx_dib.h"
 #include "fx_font.h"
 
-class CFX_ClipRgn;
-class CFX_PathData;
-class CFX_GraphStateData;
 class CFX_Font;
 class CFX_FontMgr;
 class CFX_FontCache;
 class CFX_FaceCache;
-class CFX_RenderDevice;
 class IFX_RenderDeviceDriver;
 class CCodec_ModuleMgr;
-class IFXG_PaintModuleMgr;
 
 class CFX_GEModule {
  public:
@@ -434,8 +429,7 @@ class CFX_RenderDevice {
 class CFX_FxgeDevice : public CFX_RenderDevice {
  public:
   CFX_FxgeDevice();
-
-  ~CFX_FxgeDevice();
+  ~CFX_FxgeDevice() override;
 
   FX_BOOL Attach(CFX_DIBitmap* pBitmap,
                  int dither_bits = 0,
@@ -455,8 +449,7 @@ class CFX_FxgeDevice : public CFX_RenderDevice {
 class CFX_SkiaDevice : public CFX_RenderDevice {
  public:
   CFX_SkiaDevice();
-
-  ~CFX_SkiaDevice();
+  ~CFX_SkiaDevice() override;
 
   FX_BOOL Attach(CFX_DIBitmap* pBitmap,
                  int dither_bits = 0,
@@ -473,6 +466,7 @@ class CFX_SkiaDevice : public CFX_RenderDevice {
  protected:
   FX_BOOL m_bOwnedBitmap;
 };
+
 class IFX_RenderDeviceDriver {
  public:
   static IFX_RenderDeviceDriver* CreateFxgeDriver(
@@ -612,14 +606,16 @@ class IFX_RenderDeviceDriver {
 
   virtual void ClearDriver() {}
 };
+
 class IFX_PSOutput {
  public:
   virtual void Release() = 0;
   virtual void OutputPS(const FX_CHAR* string, int len) = 0;
 
  protected:
-  ~IFX_PSOutput() {}
+  virtual ~IFX_PSOutput() {}
 };
+
 class CPSFont;
 class CFX_PSRenderer {
  public: