Remove unused editing related member functions from WebViewClient

LayoutTests/platform/win/editing/undo/undo-misspellings-expected.txt

Index: LayoutTests/platform/win/editing/undo/undo-misspellings-expected.txt
diff --git a/LayoutTests/platform/win/editing/undo/undo-misspellings-expected.txt b/LayoutTests/platform/win/editing/undo/undo-misspellings-expected.txt
index 5716d4a121c2a9edade3d9fb7eb0aaf1643a96f2..2a8612e056d2d4ec38fe6a10c877122c0f5c1e80 100644
--- a/LayoutTests/platform/win/editing/undo/undo-misspellings-expected.txt
+++ b/LayoutTests/platform/win/editing/undo/undo-misspellings-expected.txt
@@ -1,24 +1,16 @@
-EDITING DELEGATE: shouldBeginEditingInDOMRange:range from 0 of DIV > BODY > HTML > #document to 0 of DIV > BODY > HTML > #document
-EDITING DELEGATE: webViewDidBeginEditing:WebViewDidBeginEditingNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 0 of DIV > BODY > HTML > #document to 0 of DIV > BODY > HTML > #document toDOMRange:range from 6 of #text > DIV > BODY > HTML > #document to 6 of #text > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 6 of #text > DIV > BODY > HTML > #document to 6 of #text > DIV > BODY > HTML > #document toDOMRange:range from 7 of #text > DIV > BODY > HTML > #document to 7 of #text > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 6 of #text > DIV > BODY > HTML > #document to 6 of #text > DIV > BODY > HTML > #document toDOMRange:range from 13 of #text > DIV > BODY > HTML > #document to 13 of #text > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 13 of #text > DIV > BODY > HTML > #document to 13 of #text > DIV > BODY > HTML > #document toDOMRange:range from 14 of #text > DIV > BODY > HTML > #document to 14 of #text > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 13 of #text > DIV > BODY > HTML > #document to 13 of #text > DIV > BODY > HTML > #document toDOMRange:range from 20 of #text > DIV > BODY > HTML > #document to 20 of #text > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 20 of #text > DIV > BODY > HTML > #document to 20 of #text > DIV > BODY > HTML > #document toDOMRange:range from 21 of #text > DIV > BODY > HTML > #document to 21 of #text > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification