Initial OpenType Font Variations Support

third_party/WebKit/Source/platform/fonts/opentype/FontSettings.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef FontSettings_h
 #define FontSettings_h
 
 #include "platform/PlatformExport.h"
 #include "wtf/Allocator.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 
+uint32_t atomicStringToFourByteTag(AtomicString tag);
+
 template <typename T>
 class FontTagValuePair {
   DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
 
  public:
   FontTagValuePair(const AtomicString& tag, T value)
       : m_tag(tag), m_value(value){};
   bool operator==(const FontTagValuePair& other) const {
     return m_tag == other.m_tag && m_value == other.m_value;
   };
@@ skipping 16 matching lines @@
   const T& operator[](int index) const { return m_list[index]; }
   const T& at(size_t index) const { return m_list.at(index); }
   bool operator==(const FontSettings& other) const {
     return m_list == other.m_list;
   };
 
  protected:
   FontSettings(){};
 
  private:
-  Vector<T> m_list;
+  Vector<T, 0> m_list;
 };
 
 using FontFeature = FontTagValuePair<int>;
 using FontVariationAxis = FontTagValuePair<float>;
 
 class PLATFORM_EXPORT FontFeatureSettings
     : public FontSettings<FontFeature>,
       public RefCounted<FontFeatureSettings> {
   WTF_MAKE_NONCOPYABLE(FontFeatureSettings);
 
  public:
   static PassRefPtr<FontFeatureSettings> create() {
     return adoptRef(new FontFeatureSettings());
   }
 
  private:
   FontFeatureSettings() = default;
 };
 
 class PLATFORM_EXPORT FontVariationSettings
     : public FontSettings<FontVariationAxis>,
       public RefCounted<FontVariationSettings> {
   WTF_MAKE_NONCOPYABLE(FontVariationSettings);
 
  public:
   static PassRefPtr<FontVariationSettings> create() {
     return adoptRef(new FontVariationSettings());
   }
 
+  unsigned hash() const;
+
  private:
   FontVariationSettings() = default;
 };
 
 }  // namespace blink
 
 #endif  // FontSettings_h