Move StyleBoxData.cpp to be inline in StyleBoxData.h.

third_party/WebKit/Source/core/style/StyleBoxData.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 27 matching lines @@
 // instead. Keep the allocation logic, only allocating a new object if needed.
 class CORE_EXPORT StyleBoxData : public RefCountedCopyable<StyleBoxData> {
  public:
   static PassRefPtr<StyleBoxData> Create() {
     return AdoptRef(new StyleBoxData);
   }
   PassRefPtr<StyleBoxData> Copy() const {
     return AdoptRef(new StyleBoxData(*this));
   }
 
-  bool operator==(const StyleBoxData&) const;
+  bool operator==(const StyleBoxData& other) const {
+    return width_ == other.width_ && height_ == other.height_ &&
+           min_width_ == other.min_width_ && max_width_ == other.max_width_ &&
+           min_height_ == other.min_height_ &&
+           max_height_ == other.max_height_ &&
+           vertical_align_length_ == other.vertical_align_length_ &&
+           z_index_ == other.z_index_ &&
+           has_auto_z_index_ == other.has_auto_z_index_ &&
+           box_sizing_ == other.box_sizing_ &&
+           box_decoration_break_ == other.box_decoration_break_;
+  }
   bool operator!=(const StyleBoxData& o) const { return !(*this == o); }
 
  private:
   friend class ComputedStyle;
 
-  StyleBoxData();
+  StyleBoxData()
+      : width_(Length()),
+        height_(Length()),
+        min_width_(Length()),
+        max_width_(Length(kMaxSizeNone)),
+        min_height_(Length()),
+        max_height_(Length(kMaxSizeNone)),
+        z_index_(0),
+        has_auto_z_index_(static_cast<unsigned>(true)),
+        box_sizing_(static_cast<unsigned>(EBoxSizing::kContentBox)),
+        box_decoration_break_(
+            static_cast<unsigned>(EBoxDecorationBreak::kSlice)) {}
+
   StyleBoxData(const StyleBoxData&) = default;
 
   Length width_;
   Length height_;
 
   Length min_width_;
   Length max_width_;
 
   Length min_height_;
   Length max_height_;
 
   Length vertical_align_length_;
 
   int z_index_;
   unsigned has_auto_z_index_ : 1;
   unsigned box_sizing_ : 1;            // EBoxSizing
   unsigned box_decoration_break_ : 1;  // EBoxDecorationBreak
 };
 
 }  // namespace blink
 
 #endif  // StyleBoxData_h