Remove unused editing related member functions from WebViewClient

LayoutTests/platform/win/editing/deleting/delete-listitem-002-expected.txt

Index: LayoutTests/platform/win/editing/deleting/delete-listitem-002-expected.txt
diff --git a/LayoutTests/platform/win/editing/deleting/delete-listitem-002-expected.txt b/LayoutTests/platform/win/editing/deleting/delete-listitem-002-expected.txt
index f4b4a0eebf6180f834356c90e4e785f9d70968b2..9ffe374758959eb3243dbbaa70ad4d3fedb4ba7b 100644
--- a/LayoutTests/platform/win/editing/deleting/delete-listitem-002-expected.txt
+++ b/LayoutTests/platform/win/editing/deleting/delete-listitem-002-expected.txt
@@ -1,5 +1,3 @@
-EDITING DELEGATE: shouldBeginEditingInDOMRange:range from 0 of DIV > BODY > HTML > #document to 3 of DIV > BODY > HTML > #document
-EDITING DELEGATE: webViewDidBeginEditing:WebViewDidBeginEditingNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
@@ -8,25 +6,19 @@ EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotificatio
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 4 of #text > LI > UL > DIV > BODY > HTML > #document to 5 of #text > LI > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 3 of #text > LI > UL > DIV > BODY > HTML > #document to 4 of #text > LI > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 2 of #text > LI > UL > DIV > BODY > HTML > #document to 3 of #text > LI > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 1 of #text > LI > UL > DIV > BODY > HTML > #document to 2 of #text > LI > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 0 of #text > LI > UL > DIV > BODY > HTML > #document to 1 of #text > LI > UL > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 0 of LI > UL > DIV > BODY > HTML > #document to 0 of LI > UL > DIV > BODY > HTML > #document toDOMRange:range from 0 of LI > UL > DIV > BODY > HTML > #document to 0 of LI > UL > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
 layer at (0,0) size 800x600