Remove pinch viewports.

sky/engine/public/web/WebWidget.h

Index: sky/engine/public/web/WebWidget.h
diff --git a/sky/engine/public/web/WebWidget.h b/sky/engine/public/web/WebWidget.h
index 946270dcf6e480abddb2363f898108d6d6443520..17ffb448fb3a492a923c551a4d4ab6fb1687c969 100644
--- a/sky/engine/public/web/WebWidget.h
+++ b/sky/engine/public/web/WebWidget.h
@@ -68,13 +68,6 @@ public:
     // Called to resize the WebWidget.
     virtual void resize(const WebSize&) { }
 
-    // Resizes the unscaled pinch viewport. Normally the unscaled pinch
-    // viewport is the same size as the main frame. The passed size becomes the
-    // size of the viewport when unscaled (i.e. scale = 1). This is used to
-    // shrink the visible viewport to allow things like the ChromeOS virtual
-    // keyboard to overlay over content but allow scrolling it into view.
-    virtual void resizePinchViewport(const WebSize&) { }
-
     // Ends a group of resize events that was started with a call to
     // willStartLiveResize.
     virtual void willEndLiveResize() { }