Move ownership of IdleSpellCheckCallback from LocalFrame to SpellChecker

third_party/WebKit/Source/core/frame/LocalFrame.cpp

Index: third_party/WebKit/Source/core/frame/LocalFrame.cpp
diff --git a/third_party/WebKit/Source/core/frame/LocalFrame.cpp b/third_party/WebKit/Source/core/frame/LocalFrame.cpp
index 6d5853967979d907d2af3e104cb201bd7ab28150..05a3caf50e717c723d49de7aa778de7e2de4b63b 100644
--- a/third_party/WebKit/Source/core/frame/LocalFrame.cpp
+++ b/third_party/WebKit/Source/core/frame/LocalFrame.cpp
@@ -42,7 +42,6 @@
 #include "core/editing/FrameSelection.h"
 #include "core/editing/InputMethodController.h"
 #include "core/editing/serializers/Serialization.h"
-#include "core/editing/spellcheck/IdleSpellCheckCallback.h"
 #include "core/editing/spellcheck/SpellChecker.h"
 #include "core/events/Event.h"
 #include "core/frame/EventHandlerRegistry.h"
@@ -358,7 +357,6 @@ DEFINE_TRACE(LocalFrame) {
   visitor->trace(m_eventHandler);
   visitor->trace(m_console);
   visitor->trace(m_inputMethodController);
-  visitor->trace(m_idleSpellCheckCallback);
   Frame::trace(visitor);
   Supplementable<LocalFrame>::trace(visitor);
 }
@@ -865,7 +863,6 @@ inline LocalFrame::LocalFrame(FrameLoaderClient* client,
       m_eventHandler(new EventHandler(*this)),
       m_console(FrameConsole::create(*this)),
       m_inputMethodController(InputMethodController::create(*this)),
-      m_idleSpellCheckCallback(IdleSpellCheckCallback::create(*this)),
       m_navigationDisableCount(0),
       m_pageZoomFactor(parentPageZoomFactor(this)),
       m_textZoomFactor(parentTextZoomFactor(this)),