Add padding values to View.idl

sky/engine/core/view/View.h

Index: sky/engine/core/view/View.h
diff --git a/sky/engine/core/view/View.h b/sky/engine/core/view/View.h
index b5a5599fbec19da521ebb900282874b9a836fccf..71147f4b968b10d0f0f6537a3b659f0882f1e89d 100644
--- a/sky/engine/core/view/View.h
+++ b/sky/engine/core/view/View.h
@@ -25,6 +25,12 @@ public:
     static PassRefPtr<View> create(const base::Closure& scheduleFrameCallback);
 
     double devicePixelRatio() const { return m_displayMetrics.device_pixel_ratio; }
+
+    double paddingTop() const { return m_displayMetrics.padding_top; }
+    double paddingRight() const { return m_displayMetrics.padding_right; }
+    double paddingBottom() const { return m_displayMetrics.padding_bottom; }
+    double paddingLeft() const { return m_displayMetrics.padding_left; }
+
     double width() const;
     double height() const;