Rename VisualViewport properties to match updated spec

third_party/WebKit/Source/core/frame/DOMVisualViewport.h

Index: third_party/WebKit/Source/core/frame/DOMVisualViewport.h
diff --git a/third_party/WebKit/Source/core/frame/DOMVisualViewport.h b/third_party/WebKit/Source/core/frame/DOMVisualViewport.h
index 1829e6ceabc8e0f32ca11a3a83868778ab959461..0cb886fb99d88cccae2cf5e170fb5a9593e4d998 100644
--- a/third_party/WebKit/Source/core/frame/DOMVisualViewport.h
+++ b/third_party/WebKit/Source/core/frame/DOMVisualViewport.h
@@ -58,13 +58,13 @@ class DOMVisualViewport final : public EventTargetWithInlineData {
   const AtomicString& InterfaceName() const override;
   ExecutionContext* GetExecutionContext() const override;
 
-  float scrollLeft();
-  float scrollTop();
-  float pageX();
-  float pageY();
-  double clientWidth();
-  double clientHeight();
-  double scale();
+  float offsetLeft() const;
+  float offsetTop() const;
+  float pageLeft() const;
+  float pageTop() const;
+  double width() const;
+  double height() const;
+  double scale() const;
 
  private:
   explicit DOMVisualViewport(LocalDOMWindow*);