Use nullptr instead of 0 in a few header files

Change-Id: I6c688cd5019fd0a425093b44c62981c0bb6bc8d2
Reviewed-on: https://chromium-review.googlesource.com/683934
Commit-Queue: Philip Jägenstedt <foolip@chromium.org>
Reviewed-by: Philip Jägenstedt <foolip@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505279}

third_party/WebKit/Source/core/css/FontFace.h

@@ -152,7 +152,7 @@ class CORE_EXPORT FontFace : public GarbageCollectedFinalized<FontFace>,
   void SetPropertyFromString(const Document*,
                              const String&,
                              CSSPropertyID,
-                             ExceptionState* = 0);
+                             ExceptionState* = nullptr);
   bool SetPropertyFromStyle(const StylePropertySet&, CSSPropertyID);
   bool SetPropertyValue(const CSSValue*, CSSPropertyID);
   bool SetFamilyValue(const CSSValue&);

third_party/WebKit/Source/core/css/StyleRule.h

@@ -68,7 +68,7 @@ class CORE_EXPORT StyleRuleBase
   StyleRuleBase* Copy() const;
 
   // FIXME: There shouldn't be any need for the null parent version.
-  CSSRule* CreateCSSOMWrapper(CSSStyleSheet* parent_sheet = 0) const;
+  CSSRule* CreateCSSOMWrapper(CSSStyleSheet* parent_sheet = nullptr) const;
   CSSRule* CreateCSSOMWrapper(CSSRule* parent_rule) const;
 
   DECLARE_TRACE();

third_party/WebKit/Source/core/dom/FlatTreeTraversal.h

@@ -64,7 +64,7 @@ class CORE_EXPORT FlatTreeTraversal {
   static Node* LastChild(const Node&);
   static bool HasChildren(const Node&);
 
-  static ContainerNode* Parent(const Node&, ParentTraversalDetails* = 0);
+  static ContainerNode* Parent(const Node&, ParentTraversalDetails* = nullptr);
   static Element* ParentElement(const Node&);
 
   static Node* NextSibling(const Node&);
@@ -150,10 +150,10 @@ class CORE_EXPORT FlatTreeTraversal {
   static Node* TraverseChild(const Node&, TraversalDirection);
 
   static ContainerNode* TraverseParent(const Node&,
-                                       ParentTraversalDetails* = 0);
+                                       ParentTraversalDetails* = nullptr);
   // TODO(hayato): Make ParentTraversalDetails be aware of slot elements too.
   static ContainerNode* TraverseParentForV0(const Node&,
-                                            ParentTraversalDetails* = 0);
+                                            ParentTraversalDetails* = nullptr);
   static ContainerNode* TraverseParentOrHost(const Node&);
 
   static Node* TraverseNextSibling(const Node&);

third_party/WebKit/Source/core/html/FormData.h

@@ -55,7 +55,7 @@ class CORE_EXPORT FormData final
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  static FormData* Create(HTMLFormElement* form = 0) {
+  static FormData* Create(HTMLFormElement* form = nullptr) {
     return new FormData(form);
   }
 

third_party/WebKit/Source/core/svg/SVGElement.cpp

@@ -466,7 +466,7 @@ CSSPropertyID SVGElement::CssPropertyIdForSVGAttributeName(
   if (!attr_name.NamespaceURI().IsNull())
     return CSSPropertyInvalid;
 
-  static HashMap<StringImpl*, CSSPropertyID>* property_name_to_id_map = 0;
+  static HashMap<StringImpl*, CSSPropertyID>* property_name_to_id_map = nullptr;
   if (!property_name_to_id_map) {
     property_name_to_id_map = new HashMap<StringImpl*, CSSPropertyID>;
     // This is a list of all base CSS and SVG CSS properties which are exposed

third_party/WebKit/Source/core/svg/SVGElement.h

@@ -163,7 +163,7 @@ class CORE_EXPORT SVGElement : public Element {
 
   virtual bool HaveLoadedRequiredResources();
 
-  void InvalidateRelativeLengthClients(SubtreeLayoutScope* = 0);
+  void InvalidateRelativeLengthClients(SubtreeLayoutScope* = nullptr);
 
   void AddToPropertyMap(SVGAnimatedPropertyBase*);
 

third_party/WebKit/Source/core/xml/parser/XMLDocumentParser.h

@@ -97,7 +97,7 @@ class XMLDocumentParser final : public ScriptableDocumentParser,
   static bool ParseDocumentFragment(
       const String&,
       DocumentFragment*,
-      Element* parent = 0,
+      Element* parent = nullptr,
       ParserContentPolicy = kAllowScriptingContent);
 
   // Used by the XMLHttpRequest to check if the responseXML was well formed.
@@ -118,7 +118,7 @@ class XMLDocumentParser final : public ScriptableDocumentParser,
   void SetScriptStartPosition(TextPosition);
 
  private:
-  explicit XMLDocumentParser(Document&, LocalFrameView* = 0);
+  explicit XMLDocumentParser(Document&, LocalFrameView* = nullptr);
   XMLDocumentParser(DocumentFragment*, Element*, ParserContentPolicy);
 
   // From DocumentParser

third_party/WebKit/Source/core/xml/parser/XMLDocumentParserScope.cpp

@@ -27,7 +27,7 @@
 
 namespace blink {
 
-Document* XMLDocumentParserScope::current_document_ = 0;
+Document* XMLDocumentParserScope::current_document_ = nullptr;
 
 XMLDocumentParserScope::XMLDocumentParserScope(Document* document)
     : old_document_(current_document_),

third_party/WebKit/Source/modules/webdatabase/Database.h

@@ -153,7 +153,7 @@ class Database final : public GarbageCollectedFinalized<Database>,
                       SQLTransactionErrorCallback*,
                       VoidCallback* success_callback,
                       bool read_only,
-                      const ChangeVersionData* = 0);
+                      const ChangeVersionData* = nullptr);
   Vector<String> PerformGetTableNames();
 
   void ReportOpenDatabaseResult(int error_site,

third_party/WebKit/Source/platform/graphics/BitmapImage.h

@@ -116,8 +116,8 @@ class PLATFORM_EXPORT BitmapImage final : public Image {
     kCertain     // The repetition count is known to be correct.
   };
 
-  BitmapImage(const SkBitmap&, ImageObserver* = 0);
-  BitmapImage(ImageObserver* = 0, bool is_multi_part = false);
+  BitmapImage(const SkBitmap&, ImageObserver* = nullptr);
+  BitmapImage(ImageObserver* = nullptr, bool is_multi_part = false);
 
   void Draw(PaintCanvas*,
             const PaintFlags&,