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

Source/core/html/parser/HTMLDocumentParser.h

Index: Source/core/html/parser/HTMLDocumentParser.h
diff --git a/Source/core/html/parser/HTMLDocumentParser.h b/Source/core/html/parser/HTMLDocumentParser.h
index 3054f482b7390ca0a132d27609d8986b088205e1..a6c23496baf914e399e00023ba2c7335677ecf4e 100644
--- a/Source/core/html/parser/HTMLDocumentParser.h
+++ b/Source/core/html/parser/HTMLDocumentParser.h
@@ -41,12 +41,11 @@
 #include "core/html/parser/XSSAuditor.h"
 #include "core/html/parser/XSSAuditorDelegate.h"
 #include "core/loader/cache/CachedResourceClient.h"
-#include "core/platform/Timer.h"
 #include "core/platform/text/SegmentedString.h"
-#include <wtf/Deque.h>
-#include <wtf/OwnPtr.h>
-#include <wtf/text/TextPosition.h>
-#include <wtf/WeakPtr.h>
+#include "wtf/Deque.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/WeakPtr.h"
+#include "wtf/text/TextPosition.h"
 
 namespace WebCore {