Remove didAutoResize from WebWidgetClient and move it to WebViewClient..

third_party/WebKit/public/web/WebWidgetClient.h

Index: third_party/WebKit/public/web/WebWidgetClient.h
diff --git a/third_party/WebKit/public/web/WebWidgetClient.h b/third_party/WebKit/public/web/WebWidgetClient.h
index b7c6987942d74bf095151ebb87e572a8d7a1ec61..42be33c4416ab7fde99a0203a2816f6048bbf70b 100644
--- a/third_party/WebKit/public/web/WebWidgetClient.h
+++ b/third_party/WebKit/public/web/WebWidgetClient.h
@@ -58,9 +58,6 @@ public:
     // Called when a region of the WebWidget needs to be re-painted.
     virtual void didInvalidateRect(const WebRect&) { }
 
-    // Called when the Widget has changed size as a result of an auto-resize.
-    virtual void didAutoResize(const WebSize& newSize) { }
-
     // Attempt to initialize compositing for this widget. If this is successful,
     // layerTreeView() will return a valid WebLayerTreeView.
     virtual void initializeLayerTreeView() { }