Refactoring: Use in-class member initialization in EditingStyle.h

It allows to remove common initialization lists in constructors.

BUG=none

Review-Url: https://codereview.chromium.org/2034303004
Cr-Commit-Position: refs/heads/master@{#398042}

third_party/WebKit/Source/core/editing/EditingStyle.cpp

@@ -355,38 +355,24 @@ CSSValue* HTMLFontSizeEquivalent::attributeValueAsCSSValue(Element* element) con
 
 float EditingStyle::NoFontDelta = 0.0f;
 
-EditingStyle::EditingStyle()
-    : m_isMonospaceFont(false)
-    , m_fontSizeDelta(NoFontDelta)
-{
-}
-
 EditingStyle::EditingStyle(ContainerNode* node, PropertiesToInclude propertiesToInclude)
-    : m_isMonospaceFont(false)
-    , m_fontSizeDelta(NoFontDelta)
 {
     init(node, propertiesToInclude);
 }
 
 EditingStyle::EditingStyle(const Position& position, PropertiesToInclude propertiesToInclude)
-    : m_isMonospaceFont(false)
-    , m_fontSizeDelta(NoFontDelta)
 {
     init(position.anchorNode(), propertiesToInclude);
 }
 
 EditingStyle::EditingStyle(const StylePropertySet* style)
     : m_mutableStyle(style ? style->mutableCopy() : nullptr)
-    , m_isMonospaceFont(false)
-    , m_fontSizeDelta(NoFontDelta)
 {
     extractFontSizeDelta();
 }
 
 EditingStyle::EditingStyle(CSSPropertyID propertyID, const String& value)
     : m_mutableStyle(nullptr)
-    , m_isMonospaceFont(false)
-    , m_fontSizeDelta(NoFontDelta)
 {
     setProperty(propertyID, value);
     m_isVerticalAlign = propertyID == CSSPropertyVerticalAlign && (value == "sub" || value == "super");

third_party/WebKit/Source/core/editing/EditingStyle.h

@@ -145,7 +145,7 @@ public:
     DECLARE_TRACE();
 
 private:
-    EditingStyle();
+    EditingStyle() = default;
     EditingStyle(ContainerNode*, PropertiesToInclude);
     EditingStyle(const Position&, PropertiesToInclude);
     explicit EditingStyle(const StylePropertySet*);
@@ -161,8 +161,8 @@ private:
     void mergeStyle(const StylePropertySet*, CSSPropertyOverrideMode);
 
     Member<MutableStylePropertySet> m_mutableStyle;
-    bool m_isMonospaceFont;
-    float m_fontSizeDelta;
+    bool m_isMonospaceFont = false;
+    float m_fontSizeDelta = NoFontDelta;
     bool m_isVerticalAlign = false;
 
     friend class HTMLElementEquivalent;