Remove unused includes from core/{editing,fileapi,history,html}

Source/core/editing/markup.cpp

Index: Source/core/editing/markup.cpp
diff --git a/Source/core/editing/markup.cpp b/Source/core/editing/markup.cpp
index 2e3512704f35a63e0309e2d1abd70db5c6ebda58..604ceeb219388e789a269f4366d9777585bdcb9a 100644
--- a/Source/core/editing/markup.cpp
+++ b/Source/core/editing/markup.cpp
@@ -32,19 +32,13 @@
 #include "CSSPropertyNames.h"
 #include "CSSValueKeywords.h"
 #include "HTMLNames.h"
-#include "XMLNSNames.h"
 #include "core/css/CSSPrimitiveValue.h"
-#include "core/css/CSSRule.h"
-#include "core/css/CSSRuleList.h"
-#include "core/css/CSSStyleRule.h"
 #include "core/css/CSSValue.h"
 #include "core/css/StylePropertySet.h"
-#include "core/css/resolver/StyleResolver.h"
 #include "core/dom/CDATASection.h"
 #include "core/dom/ChildListMutationScope.h"
 #include "core/dom/ContextFeatures.h"
 #include "core/dom/DocumentFragment.h"
-#include "core/dom/DocumentType.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExceptionCodePlaceholder.h"
 #include "core/dom/NodeTraversal.h"
@@ -59,13 +53,10 @@
 #include "core/html/HTMLElement.h"
 #include "core/html/HTMLTextFormControlElement.h"
 #include "core/page/Frame.h"
-#include "core/page/Settings.h"
-#include "core/rendering/RenderBlock.h"
 #include "core/rendering/RenderObject.h"
 #include "weborigin/KURL.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/text/StringBuilder.h"
-#include "wtf/unicode/CharacterNames.h"
 
 using namespace std;