Remove unnecessary includes from HTMLDocumentParser.h

third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h

Index: third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h b/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
index edd51cd1494e08816c273ae9ae3a78c706efe382..203abec62c9b185f132723df8c69882c0d3ae747 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
+++ b/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
@@ -26,13 +26,9 @@
 #ifndef HTMLDocumentParser_h
 #define HTMLDocumentParser_h
 
-#include "bindings/core/v8/DocumentWriteEvaluator.h"
 #include "core/dom/ParserContentPolicy.h"
 #include "core/dom/ScriptableDocumentParser.h"
-#include "core/fetch/ResourceClient.h"
-#include "core/frame/UseCounter.h"
 #include "core/html/parser/BackgroundHTMLInputStream.h"
-#include "core/html/parser/CompactHTMLToken.h"

[Charlie Harrison, 2016/08/25 12:55:52]

Looks like we need this one for
    void constructTreeFromCompactHTMLToken(const CompactHTMLToken&);

[pasko, 2016/08/25 13:05:06]

A forward declaration of this class is sufficient, and should be preferred
because all declarations in this file are not using any information about the
internal organization of CompactHTMLToken.

 #include "core/html/parser/HTMLInputStream.h"
 #include "core/html/parser/HTMLParserOptions.h"
 #include "core/html/parser/HTMLParserReentryPermit.h"
@@ -46,7 +42,6 @@
 #include "core/html/parser/TextResourceDecoder.h"
 #include "core/html/parser/XSSAuditor.h"
 #include "core/html/parser/XSSAuditorDelegate.h"
-#include "platform/text/SegmentedString.h"

[Charlie Harrison, 2016/08/25 12:55:51]

Looks like need this declaration for "void insert(const SegmentedString&) final"

[pasko, 2016/08/25 13:05:06]

Same as above

 #include "wtf/Deque.h"
 #include "wtf/RefPtr.h"
 #include "wtf/WeakPtr.h"
@@ -63,11 +58,14 @@ class DocumentFragment;
 class Element;
 class HTMLDocument;
 class HTMLParserScheduler;
+class HTMLPreloadScanner;
 class HTMLResourcePreloader;
 class HTMLScriptRunner;
 class HTMLTreeBuilder;
 class PumpSession;
+class SegmentedString;
 class TokenizedChunkQueue;
+class DocumentWriteEvaluator;
 
 class HTMLDocumentParser :  public ScriptableDocumentParser, private HTMLScriptRunnerHost {
     USING_GARBAGE_COLLECTED_MIXIN(HTMLDocumentParser);