Get rid of redundant functions updateIfNeeded() in FrameSelection and SelectionEditor

third_party/WebKit/Source/core/editing/FrameSelection.cpp

Index: third_party/WebKit/Source/core/editing/FrameSelection.cpp
diff --git a/third_party/WebKit/Source/core/editing/FrameSelection.cpp b/third_party/WebKit/Source/core/editing/FrameSelection.cpp
index 791876c4c3587624b89d3f70758fba01ff29f22c..de34916614b35d263230620fbca35d9e65f60208 100644
--- a/third_party/WebKit/Source/core/editing/FrameSelection.cpp
+++ b/third_party/WebKit/Source/core/editing/FrameSelection.cpp
@@ -1151,11 +1151,6 @@ void FrameSelection::moveRangeSelection(const VisiblePosition& basePosition,
                CursorAlignOnScroll::IfNeeded, granularity);
 }
 
-void FrameSelection::updateIfNeeded() {

[Xiaocheng, 2017/02/25 02:45:46]

We should also remove this function from FS.h

-  DCHECK(!m_frame->document()->needsLayoutTreeUpdate());
-  m_selectionEditor->updateIfNeeded();
-}
-
 void FrameSelection::setCaretVisible(bool caretIsVisible) {
   m_frameCaret->setCaretVisibility(caretIsVisible ? CaretVisibility::Visible
                                                   : CaretVisibility::Hidden);