Remove some more zoom-related code.

sky/engine/public/web/WebViewClient.h

Index: sky/engine/public/web/WebViewClient.h
diff --git a/sky/engine/public/web/WebViewClient.h b/sky/engine/public/web/WebViewClient.h
index 6b8c1a558c33ac7dd6c87d94c7a74cfe251d0f81..8495a849953140558c9fe49dbaee98978860b2d7 100644
--- a/sky/engine/public/web/WebViewClient.h
+++ b/sky/engine/public/web/WebViewClient.h
@@ -123,18 +123,6 @@ public:
 
     virtual void didUpdateInspectorSetting(const WebString& key, const WebString& value) { }
 
-
-    // Zoom ----------------------------------------------------------------
-
-    // Informs the browser that the zoom levels for this frame have changed from
-    // the default values.
-    virtual void zoomLimitsChanged(double minimumLevel, double maximumLevel) { }
-
-    // Informs the browser that the zoom level has changed as a result of an
-    // action that wasn't initiated by the client.
-    virtual void zoomLevelChanged() { }
-
-
     // Navigator Content Utils  --------------------------------------------
 
     // Registers a new URL handler for the given protocol.