[DevTools] migrate InspectorDOMAgent to new style

third_party/WebKit/Source/core/inspector/DOMEditor.h

Index: third_party/WebKit/Source/core/inspector/DOMEditor.h
diff --git a/third_party/WebKit/Source/core/inspector/DOMEditor.h b/third_party/WebKit/Source/core/inspector/DOMEditor.h
index 8e0e260d19e40f53ebfe6f1ac0db20405247b80d..28cb1dcdb5cb8d78773f7018ba5bf84c4efbd067 100644
--- a/third_party/WebKit/Source/core/inspector/DOMEditor.h
+++ b/third_party/WebKit/Source/core/inspector/DOMEditor.h
@@ -43,8 +43,7 @@ class ExceptionState;
 class InspectorHistory;
 class Node;
 class Text;
-
-using protocol::ErrorString;
+using protocol::Response;
 
 class DOMEditor final : public GarbageCollected<DOMEditor> {
   WTF_MAKE_NONCOPYABLE(DOMEditor);
@@ -72,18 +71,12 @@ class DOMEditor final : public GarbageCollected<DOMEditor> {
                     ExceptionState&);
   bool setNodeValue(Node* parentNode, const String& value, ExceptionState&);
 
-  bool insertBefore(ContainerNode* parentNode,
-                    Node*,
-                    Node* anchorNode,
-                    ErrorString*);
-  bool removeChild(ContainerNode* parentNode, Node*, ErrorString*);
-  bool setAttribute(Element*,
-                    const String& name,
-                    const String& value,
-                    ErrorString*);
-  bool removeAttribute(Element*, const String& name, ErrorString*);
-  bool setOuterHTML(Node*, const String& html, Node** newNode, ErrorString*);
-  bool replaceWholeText(Text*, const String& text, ErrorString*);
+  Response insertBefore(ContainerNode* parentNode, Node*, Node* anchorNode);
+  Response removeChild(ContainerNode* parentNode, Node*);
+  Response setAttribute(Element*, const String& name, const String& value);
+  Response removeAttribute(Element*, const String& name);
+  Response setOuterHTML(Node*, const String& html, Node** newNode);
+  Response replaceWholeText(Text*, const String& text);
 
  private:
   class DOMAction;