9 files changed, 10 insertions, 10 deletions
diff --git a/core/fpdfapi/font/cfx_cttgsubtable.h b/core/fpdfapi/font/cfx_cttgsubtable.h
index 6b23a8db27..54e16b4aed 100644
--- a/core/fpdfapi/font/cfx_cttgsubtable.h
+++ b/core/fpdfapi/font/cfx_cttgsubtable.h
@@ -60,7 +60,7 @@ class CFX_CTTGSUBTable {
   };
 
   struct TCoverageFormatBase {
-    virtual ~TCoverageFormatBase() {}
+    virtual ~TCoverageFormatBase() = default;
     uint16_t CoverageFormat;
   };
 
diff --git a/core/fpdfapi/parser/cpdf_document.h b/core/fpdfapi/parser/cpdf_document.h
index be3f30ce5d..d61129378e 100644
--- a/core/fpdfapi/parser/cpdf_document.h
+++ b/core/fpdfapi/parser/cpdf_document.h
@@ -47,7 +47,7 @@ class CPDF_Document : public Observable<CPDF_Document>,
   // Type from which the XFA extension can subclass itself.
   class Extension {
    public:
-    virtual ~Extension() {}
+    virtual ~Extension() = default;
     virtual CPDF_Document* GetPDFDoc() const = 0;
     virtual int GetPageCount() const = 0;
     virtual void DeletePage(int page_index) = 0;
diff --git a/core/fpdfdoc/ipdf_formnotify.h b/core/fpdfdoc/ipdf_formnotify.h
index 053ca12a41..7e11ecbd12 100644
--- a/core/fpdfdoc/ipdf_formnotify.h
+++ b/core/fpdfdoc/ipdf_formnotify.h
@@ -14,7 +14,7 @@ class CPDF_InterForm;
 
 class IPDF_FormNotify {
  public:
-  virtual ~IPDF_FormNotify() {}
+  virtual ~IPDF_FormNotify() = default;
 
   virtual bool BeforeValueChange(CPDF_FormField* pField,
                                  const WideString& csValue) = 0;
diff --git a/core/fpdfdoc/ipvt_fontmap.h b/core/fpdfdoc/ipvt_fontmap.h
index 31aa73b8a1..a27c0ac28a 100644
--- a/core/fpdfdoc/ipvt_fontmap.h
+++ b/core/fpdfdoc/ipvt_fontmap.h
@@ -15,7 +15,7 @@ class CPDF_Font;
 
 class IPVT_FontMap {
  public:
-  virtual ~IPVT_FontMap() {}
+  virtual ~IPVT_FontMap() = default;
 
   virtual CPDF_Font* GetPDFFont(int32_t nFontIndex) = 0;
   virtual ByteString GetPDFFontAlias(int32_t nFontIndex) = 0;
diff --git a/core/fxcodec/codec/codec_module_iface.h b/core/fxcodec/codec/codec_module_iface.h
index 08469726aa..e7faa892b2 100644
--- a/core/fxcodec/codec/codec_module_iface.h
+++ b/core/fxcodec/codec/codec_module_iface.h
@@ -16,10 +16,10 @@ class CodecModuleIface {
  public:
   class Context {
    public:
-    virtual ~Context() {}
+    virtual ~Context() = default;
   };
 
-  virtual ~CodecModuleIface() {}
+  virtual ~CodecModuleIface() = default;
 
   // Returns the number of unprocessed bytes remaining in the input buffer.
   virtual FX_FILESIZE GetAvailInput(Context* pContext) const = 0;
diff --git a/core/fxcrt/fileaccess_iface.h b/core/fxcrt/fileaccess_iface.h
index 210080e438..fdabc7465e 100644
--- a/core/fxcrt/fileaccess_iface.h
+++ b/core/fxcrt/fileaccess_iface.h
@@ -16,7 +16,7 @@
 class FileAccessIface {
  public:
   static std::unique_ptr<FileAccessIface> Create();
-  virtual ~FileAccessIface() {}
+  virtual ~FileAccessIface() = default;
 
   virtual bool Open(const ByteStringView& fileName, uint32_t dwMode) = 0;
   virtual bool Open(const WideStringView& fileName, uint32_t dwMode) = 0;
diff --git a/core/fxcrt/locale_iface.h b/core/fxcrt/locale_iface.h
index 7e0ca6fd32..7ee18d93b8 100644
--- a/core/fxcrt/locale_iface.h
+++ b/core/fxcrt/locale_iface.h
@@ -46,7 +46,7 @@ enum FX_DATETIMETYPE {
 
 class LocaleIface {
  public:
-  virtual ~LocaleIface() {}
+  virtual ~LocaleIface() = default;
 
   virtual WideString GetName() const = 0;
   virtual WideString GetDecimalSymbol() const = 0;
diff --git a/core/fxcrt/pauseindicator_iface.h b/core/fxcrt/pauseindicator_iface.h
index c12b02e427..d5d856d94f 100644
--- a/core/fxcrt/pauseindicator_iface.h
+++ b/core/fxcrt/pauseindicator_iface.h
@@ -9,7 +9,7 @@
 
 class PauseIndicatorIface {
  public:
-  virtual ~PauseIndicatorIface() {}
+  virtual ~PauseIndicatorIface() = default;
   virtual bool NeedToPauseNow() = 0;
 };
 
diff --git a/core/fxge/dib/scanlinecomposer_iface.h b/core/fxge/dib/scanlinecomposer_iface.h
index 2a8fbbccdf..316736f63f 100644
--- a/core/fxge/dib/scanlinecomposer_iface.h
+++ b/core/fxge/dib/scanlinecomposer_iface.h
@@ -11,7 +11,7 @@
 
 class ScanlineComposerIface {
  public:
-  virtual ~ScanlineComposerIface() {}
+  virtual ~ScanlineComposerIface() = default;
 
   virtual void ComposeScanline(int line,
                                const uint8_t* scanline,