Remove unused editing related member functions from WebViewClient

LayoutTests/platform/mac/editing/style/smoosh-styles-001-expected.txt

Index: LayoutTests/platform/mac/editing/style/smoosh-styles-001-expected.txt
diff --git a/LayoutTests/platform/mac/editing/style/smoosh-styles-001-expected.txt b/LayoutTests/platform/mac/editing/style/smoosh-styles-001-expected.txt
index ce747518a7ce791444ba8324ebb8fcbe9267dad9..d150d19a578e7af91cc67cf367a603f2729d1413 100644
--- a/LayoutTests/platform/mac/editing/style/smoosh-styles-001-expected.txt
+++ b/LayoutTests/platform/mac/editing/style/smoosh-styles-001-expected.txt
@@ -1,23 +1,15 @@
-EDITING DELEGATE: shouldBeginEditingInDOMRange:range from 0 of DIV > BODY > HTML > #document to 5 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 1 of #text > DIV > DIV > BODY > HTML > #document to 4 of #text > DIV > DIV > BODY > HTML > #document
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 0 of DIV > DIV > BODY > HTML > #document to 0 of DIV > DIV > BODY > HTML > #document toDOMRange:range from 0 of DIV > DIV > BODY > HTML > #document to 0 of DIV > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldDeleteDOMRange:range from 1 of #text > DIV > DIV > BODY > HTML > #document to 0 of DIV > DIV > BODY > HTML > #document
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 2 of DIV > BODY > HTML > #document to 2 of DIV > BODY > HTML > #document toDOMRange:range from 4 of #text > SPAN > DIV > DIV > BODY > HTML > #document to 4 of #text > SPAN > DIV > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldInsertNode:#document-fragment replacingDOMRange:range from 2 of #text > SPAN > DIV > DIV > BODY > HTML > #document to 2 of #text > SPAN > DIV > DIV > BODY > HTML > #document givenAction:WebViewInsertActionPasted
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 2 of #text > SPAN > DIV > DIV > BODY > HTML > #document to 2 of #text > SPAN > DIV > DIV > BODY > HTML > #document toDOMRange:range from 3 of #text > DIV > DIV > BODY > HTML > #document to 3 of #text > DIV > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
 layer at (0,0) size 800x600