Implement hot mode invocation for idle time spell checker

third_party/WebKit/Source/core/editing/spellcheck/IdleSpellCheckCallback.h

Index: third_party/WebKit/Source/core/editing/spellcheck/IdleSpellCheckCallback.h
diff --git a/third_party/WebKit/Source/core/editing/spellcheck/IdleSpellCheckCallback.h b/third_party/WebKit/Source/core/editing/spellcheck/IdleSpellCheckCallback.h
index db1e34d49f2b9e952e397da3c15dcdcc17755b47..a95e0bce96aca0bfe9200599c7af11f25d7518b6 100644
--- a/third_party/WebKit/Source/core/editing/spellcheck/IdleSpellCheckCallback.h
+++ b/third_party/WebKit/Source/core/editing/spellcheck/IdleSpellCheckCallback.h
@@ -7,12 +7,15 @@
 
 #include "core/dom/IdleRequestCallback.h"
 #include "core/dom/SynchronousMutationObserver.h"
+#include "core/editing/EphemeralRange.h"
+#include "core/editing/Position.h"
 #include "platform/Timer.h"
 
 namespace blink {
 
 class LocalFrame;
 class SpellCheckRequester;
+class UndoStack;
 
 // Main class for the implementation of idle time spell checker.
 class CORE_EXPORT IdleSpellCheckCallback final
@@ -62,6 +65,7 @@ class CORE_EXPORT IdleSpellCheckCallback final
   void handleEvent(IdleDeadline*) override;
 
   LocalFrame& frame() const { return *m_frame; }
+  UndoStack& undoStack() const;

[yosin_UTC9, 2017/03/02 03:38:41]

This should be private.

[Xiaocheng, 2017/03/02 04:34:59]

This is private.

 
   // Returns whether spell checking is globally enabled.
   bool isSpellCheckingEnabled() const;
@@ -70,6 +74,13 @@ class CORE_EXPORT IdleSpellCheckCallback final
   void requestInvocation();
 
   // Functions for hot mode.
+  bool isTypingInPartialWord(const Element&) const;
+  bool shouldCheckRootEditableInHotMode(const Element&, const Position&) const;
+  EphemeralRange calcHotModeCheckingRange(const Element&,
+                                          const Position&) const;
+  void hotModeCheckRootEditable(Element*,
+                                const Position&,
+                                HeapVector<Member<Element>>*);
   void hotModeInvocation(IdleDeadline*);
 
   // Transit to ColdModeTimerStarted, if possible. Sets up a timer, and requests
@@ -88,7 +99,7 @@ class CORE_EXPORT IdleSpellCheckCallback final
   int m_idleCallbackHandle;
   mutable bool m_needsMoreColdModeInvocationForTesting;
   const Member<LocalFrame> m_frame;
-
+  uint64_t m_lastProcessedUndoStepSequence;
   TaskRunnerTimer<IdleSpellCheckCallback> m_coldModeTimer;
 };