| Index: public/webview/WebSettings.h | 
| diff --git a/public/webview/WebSettings.h b/public/webview/WebSettings.h | 
| index 6854fb7194c762132426bad4d9cbc6acc2e6d8a7..ddb152994bad5d3e5ce7e3ed7bad9ef55fdd71da 100644 | 
| --- a/public/webview/WebSettings.h | 
| +++ b/public/webview/WebSettings.h | 
| @@ -60,7 +60,8 @@ public: | 
| virtual void setAcceleratedCompositingFor3DTransformsEnabled(bool) = 0; | 
| virtual void setAcceleratedCompositingForAnimationEnabled(bool) = 0; | 
| virtual void setAcceleratedCompositingForCanvasEnabled(bool) = 0; | 
| -    virtual void setAcceleratedCompositingForFixedPositionEnabled(bool)  = 0; | 
| +    virtual void setAcceleratedCompositingForFixedPositionEnabled(bool) = 0; | 
| +    virtual void setAcceleratedCompositingForFixedRootBackgroundEnabled(bool) = 0; | 
| virtual void setAcceleratedCompositingForOverflowScrollEnabled(bool) = 0; | 
| virtual void setAcceleratedCompositingForTransitionEnabled(bool)  = 0; | 
| virtual void setAcceleratedCompositingForPluginsEnabled(bool) = 0; | 
|  |