Move speculations pump scheduling logic to HTMLParserScheduler.

Source/core/html/parser/HTMLParserScheduler.h

Index: Source/core/html/parser/HTMLParserScheduler.h
diff --git a/Source/core/html/parser/HTMLParserScheduler.h b/Source/core/html/parser/HTMLParserScheduler.h
index d3414aeef1ffca02deffee6b89722756530771af..5c853a30d111ddc096f2b9a5a582181ce94945e5 100644
--- a/Source/core/html/parser/HTMLParserScheduler.h
+++ b/Source/core/html/parser/HTMLParserScheduler.h
@@ -28,7 +28,6 @@
 
 #include "core/html/parser/NestingLevelIncrementer.h"
 #include "platform/Timer.h"
-#include "wtf/CurrentTime.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/RefPtr.h"
 
@@ -54,6 +53,17 @@ public:
     ~PumpSession();
 };
 
+class SpeculationsPumpSession : public ActiveParserSession {
+public:
+    explicit SpeculationsPumpSession(Document*);
+    ~SpeculationsPumpSession();
+
+    double elapsedTime() const;
+
+private:
+    double m_startTime;
+};
+
 class HTMLParserScheduler {
     WTF_MAKE_NONCOPYABLE(HTMLParserScheduler); WTF_MAKE_FAST_ALLOCATED;
 public:
@@ -63,15 +73,18 @@ public:
     }
     ~HTMLParserScheduler();
 
-    void scheduleForResume();
     bool isScheduledForResume() const { return m_isSuspendedWithActiveTimer || m_continueNextChunkTimer.isActive(); }
 
+    bool yieldIfNeeded(const SpeculationsPumpSession&);
+
     void suspend();
     void resume();
 
 private:
-    HTMLParserScheduler(HTMLDocumentParser*);
+    explicit HTMLParserScheduler(HTMLDocumentParser*);
 
+    bool shouldYield(const SpeculationsPumpSession&) const;
+    void scheduleForResume();
     void continueNextChunkTimerFired(Timer<HTMLParserScheduler>*);
 
     HTMLDocumentParser* m_parser;