Remove unused editing related member functions from WebViewClient

Source/web/EditorClientImpl.h

Index: Source/web/EditorClientImpl.h
diff --git a/Source/web/EditorClientImpl.h b/Source/web/EditorClientImpl.h
index 484c78ef7182cbb6d8b6ae87e4f549db7a9bd7fe..8f76d8115c6f79fd0bd826d70b2985b079aa5fe1 100644
--- a/Source/web/EditorClientImpl.h
+++ b/Source/web/EditorClientImpl.h
@@ -57,18 +57,8 @@ public:
     virtual bool isContinuousSpellCheckingEnabled() OVERRIDE;
     virtual void toggleContinuousSpellChecking() OVERRIDE;
     virtual bool isGrammarCheckingEnabled() OVERRIDE;
-    virtual bool shouldBeginEditing(WebCore::Range*) OVERRIDE;
-    virtual bool shouldEndEditing(WebCore::Range*) OVERRIDE;
-    virtual bool shouldInsertNode(WebCore::Node*, WebCore::Range*, WebCore::EditorInsertAction) OVERRIDE;
-    virtual bool shouldInsertText(const WTF::String&, WebCore::Range*, WebCore::EditorInsertAction) OVERRIDE;
-    virtual bool shouldDeleteRange(WebCore::Range*) OVERRIDE;
-    virtual bool shouldChangeSelectedRange(WebCore::Range* fromRange, WebCore::Range* toRange,
-        WebCore::EAffinity, bool stillSelecting) OVERRIDE;
-    virtual bool shouldApplyStyle(WebCore::StylePropertySet*, WebCore::Range*) OVERRIDE;
-    virtual void didBeginEditing() OVERRIDE;
     virtual void respondToChangedContents() OVERRIDE;
     virtual void respondToChangedSelection(WebCore::Frame*) OVERRIDE;
-    virtual void didEndEditing() OVERRIDE;
     virtual void didCancelCompositionOnSelectionChange() OVERRIDE;
     virtual void registerUndoStep(PassRefPtr<WebCore::UndoStep>) OVERRIDE;
     virtual void registerRedoStep(PassRefPtr<WebCore::UndoStep>) OVERRIDE;