Remove unused editing related member functions from WebViewClient

LayoutTests/platform/win/editing/unsupported-content/table-type-after-expected.txt

Index: LayoutTests/platform/win/editing/unsupported-content/table-type-after-expected.txt
diff --git a/LayoutTests/platform/win/editing/unsupported-content/table-type-after-expected.txt b/LayoutTests/platform/win/editing/unsupported-content/table-type-after-expected.txt
index 15ea545abe54a51ba2ef5f8aeedad848bc508906..be90a00f087e488e16d1c40e7e1467be037ae9d3 100644
--- a/LayoutTests/platform/win/editing/unsupported-content/table-type-after-expected.txt
+++ b/LayoutTests/platform/win/editing/unsupported-content/table-type-after-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
@@ -11,13 +9,10 @@ EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotificatio
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 2 of DIV > DIV > BODY > HTML > #document to 2 of DIV > DIV > BODY > HTML > #document toDOMRange:range from 1 of #text > DIV > DIV > BODY > HTML > #document to 1 of #text > DIV > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 1 of #text > DIV > DIV > BODY > HTML > #document to 1 of #text > DIV > DIV > BODY > HTML > #document toDOMRange:range from 2 of #text > DIV > DIV > BODY > HTML > #document to 2 of #text > DIV > DIV > BODY > HTML > #document affinity:NSSelectionAffinityDownstream stillSelecting:FALSE
 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-EDITING DELEGATE: shouldChangeSelectedDOMRange:range from 2 of #text > DIV > DIV > BODY > HTML > #document to 2 of #text > 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