Remove unused editing related member functions from WebViewClient

LayoutTests/platform/win/editing/deleting/delete-3800834-fix-expected.txt

Index: LayoutTests/platform/win/editing/deleting/delete-3800834-fix-expected.txt
diff --git a/LayoutTests/platform/win/editing/deleting/delete-3800834-fix-expected.txt b/LayoutTests/platform/win/editing/deleting/delete-3800834-fix-expected.txt
index 12333ff3cd9fbedab7308f3830dfd583ecf670e0..1ff37394db8e56010db46eabde03e435bfc837e8 100644
--- a/LayoutTests/platform/win/editing/deleting/delete-3800834-fix-expected.txt
+++ b/LayoutTests/platform/win/editing/deleting/delete-3800834-fix-expected.txt
@@ -1,5 +1,3 @@
-EDITING DELEGATE: shouldBeginEditingInDOMRange:range from 0 of BODY > HTML > #document to 4 of BODY > HTML > #document
-EDITING DELEGATE: webViewDidBeginEditing:WebViewDidBeginEditingNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
@@ -8,21 +6,15 @@ EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotificatio
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 2 of #text > BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document to 3 of #text > BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 1 of #text > BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document to 2 of #text > BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 0 of #text > BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document to 1 of #text > BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 0 of BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document to 0 of BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document toDOMRange:range from 0 of BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document to 0 of BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 1 of SPAN > DIV > BODY > HTML > #document to 0 of BLOCKQUOTE > SPAN > DIV > BODY > HTML > #document
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 3 of #text > SPAN > DIV > BODY > HTML > #document to 3 of #text > SPAN > DIV > BODY > HTML > #document toDOMRange:range from 3 of #text > SPAN > DIV > BODY > HTML > #document to 3 of #text > SPAN > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
 layer at (0,0) size 800x600