Remove unused editing related member functions from WebViewClient

LayoutTests/platform/win/editing/deleting/delete-listitem-001-expected.txt

Index: LayoutTests/platform/win/editing/deleting/delete-listitem-001-expected.txt
diff --git a/LayoutTests/platform/win/editing/deleting/delete-listitem-001-expected.txt b/LayoutTests/platform/win/editing/deleting/delete-listitem-001-expected.txt
index 081336d2681eafba53653fa498214a4899eb22d4..a57484faa0671b7252f9c78d1b6f79134a10d97b 100644
--- a/LayoutTests/platform/win/editing/deleting/delete-listitem-001-expected.txt
+++ b/LayoutTests/platform/win/editing/deleting/delete-listitem-001-expected.txt
@@ -1,26 +1,17 @@
-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
-EDITING DELEGATE: shouldDeleteDOMRange:range from 3 of #text > LI > UL > DIV > BODY > HTML > #document to 0 of LI > UL > DIV > BODY > HTML > #document
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 4 of UL > DIV > BODY > HTML > #document to 4 of UL > DIV > BODY > HTML > #document toDOMRange:range from 3 of #text > LI > UL > DIV > BODY > HTML > #document to 3 of #text > LI > UL > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 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: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 3 of #text > LI > UL > DIV > BODY > HTML > #document to 0 of LI > UL > DIV > BODY > HTML > #document
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 2 of UL > DIV > BODY > HTML > #document to 2 of UL > DIV > BODY > HTML > #document toDOMRange:range from 3 of #text > LI > UL > DIV > BODY > HTML > #document to 3 of #text > LI > UL > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
 layer at (0,0) size 800x600