[presubmit] Enabling readability/inheritance linter checking.

src/scanner-character-streams.h

Index: src/scanner-character-streams.h
diff --git a/src/scanner-character-streams.h b/src/scanner-character-streams.h
index b15da52437be4a3260819ef3460f30bc34763a06..8a0ae2392680533dff904d1aa6b869a253907617 100644
--- a/src/scanner-character-streams.h
+++ b/src/scanner-character-streams.h
@@ -21,16 +21,16 @@ class ExternalTwoByteString;
 class BufferedUtf16CharacterStream: public Utf16CharacterStream {
  public:
   BufferedUtf16CharacterStream();
-  virtual ~BufferedUtf16CharacterStream();
+  ~BufferedUtf16CharacterStream() override;
 
-  virtual void PushBack(uc32 character);
+  void PushBack(uc32 character) override;
 
  protected:
   static const size_t kBufferSize = 512;
   static const size_t kPushBackStepSize = 16;
 
-  virtual size_t SlowSeekForward(size_t delta);
-  virtual bool ReadBlock();
+  size_t SlowSeekForward(size_t delta) override;
+  bool ReadBlock() override;
   virtual void SlowPushBack(uc16 character);
 
   virtual size_t BufferSeekForward(size_t delta) = 0;
@@ -46,16 +46,16 @@ class GenericStringUtf16CharacterStream: public BufferedUtf16CharacterStream {
  public:
   GenericStringUtf16CharacterStream(Handle<String> data, size_t start_position,
                                     size_t end_position);
-  virtual ~GenericStringUtf16CharacterStream();
+  ~GenericStringUtf16CharacterStream() override;
 
-  virtual bool SetBookmark();
-  virtual void ResetToBookmark();
+  bool SetBookmark() override;
+  void ResetToBookmark() override;
 
  protected:
   static const size_t kNoBookmark = -1;
 
-  virtual size_t BufferSeekForward(size_t delta);
-  virtual size_t FillBuffer(size_t position);
+  size_t BufferSeekForward(size_t delta) override;
+  size_t FillBuffer(size_t position) override;
 
   Handle<String> string_;
   size_t length_;
@@ -67,14 +67,14 @@ class GenericStringUtf16CharacterStream: public BufferedUtf16CharacterStream {
 class Utf8ToUtf16CharacterStream: public BufferedUtf16CharacterStream {
  public:
   Utf8ToUtf16CharacterStream(const byte* data, size_t length);
-  virtual ~Utf8ToUtf16CharacterStream();
+  ~Utf8ToUtf16CharacterStream() override;
 
   static size_t CopyChars(uint16_t* dest, size_t length, const byte* src,
                           size_t* src_pos, size_t src_length);
 
  protected:
-  virtual size_t BufferSeekForward(size_t delta);
-  virtual size_t FillBuffer(size_t char_position);
+  size_t BufferSeekForward(size_t delta) override;
+  size_t FillBuffer(size_t char_position) override;
   void SetRawPosition(size_t char_position);
 
   const byte* raw_data_;
@@ -103,7 +103,7 @@ class ExternalStreamingStream : public BufferedUtf16CharacterStream {
         bookmark_data_offset_(0),
         bookmark_utf8_split_char_buffer_length_(0) {}
 
-  virtual ~ExternalStreamingStream() {
+  ~ExternalStreamingStream() override {
     delete[] current_data_;
     bookmark_buffer_.Dispose();
     bookmark_data_.Dispose();
@@ -120,8 +120,8 @@ class ExternalStreamingStream : public BufferedUtf16CharacterStream {
 
   size_t FillBuffer(size_t position) override;
 
-  virtual bool SetBookmark() override;
-  virtual void ResetToBookmark() override;
+  bool SetBookmark() override;
+  void ResetToBookmark() override;
 
  private:
   void HandleUtf8SplitCharacters(size_t* data_in_buffer);
@@ -154,23 +154,23 @@ class ExternalTwoByteStringUtf16CharacterStream: public Utf16CharacterStream {
   ExternalTwoByteStringUtf16CharacterStream(Handle<ExternalTwoByteString> data,
                                             int start_position,
                                             int end_position);
-  virtual ~ExternalTwoByteStringUtf16CharacterStream();
+  ~ExternalTwoByteStringUtf16CharacterStream() override;
 
-  virtual void PushBack(uc32 character) {
+  void PushBack(uc32 character) override {
     DCHECK(buffer_cursor_ > raw_data_);
     buffer_cursor_--;
     pos_--;
   }
 
-  virtual bool SetBookmark();
-  virtual void ResetToBookmark();
+  bool SetBookmark() override;
+  void ResetToBookmark() override;
 
  protected:
-  virtual size_t SlowSeekForward(size_t delta) {
+  size_t SlowSeekForward(size_t delta) override {
     // Fast case always handles seeking.
     return 0;
   }
-  virtual bool ReadBlock() {
+  bool ReadBlock() override {
     // Entire string is read at start.
     return false;
   }