Delete document marker related invalidation code.

sky/engine/core/page/Chrome.cpp

Index: sky/engine/core/page/Chrome.cpp
diff --git a/sky/engine/core/page/Chrome.cpp b/sky/engine/core/page/Chrome.cpp
index 53598806e8697a583580825a4245afb94b5acc1f..573533d0d3ba5e06ea9754ae80f90e135ab42819 100644
--- a/sky/engine/core/page/Chrome.cpp
+++ b/sky/engine/core/page/Chrome.cpp
@@ -106,19 +106,6 @@ void Chrome::mouseDidMoveOverElement(const HitTestResult& result, unsigned modif
     m_client->mouseDidMoveOverElement(result, modifierFlags);
 }
 
-void Chrome::setToolTip(const HitTestResult& result)
-{
-    // First priority is a potential toolTip representing a spelling or grammar error
-    TextDirection toolTipDirection;
-    String toolTip = result.spellingToolTip(toolTipDirection);
-
-    // Next we'll consider a tooltip for element with "title" attribute
-    if (toolTip.isEmpty())
-        toolTip = result.title(toolTipDirection);
-
-    m_client->setToolTip(toolTip, toolTipDirection);
-}
-
 void Chrome::setCursor(const Cursor& cursor)
 {
     m_client->setCursor(cursor);