Revert of Support device scale factor test with popups in LayoutTest

components/test_runner/web_test_delegate.h

Index: components/test_runner/web_test_delegate.h
diff --git a/components/test_runner/web_test_delegate.h b/components/test_runner/web_test_delegate.h
index d5d67e4eb9c6dcc89e7f6889b743224314884410..cb9df66cae892c025c3e87ff4e423bdbc9c39bc1 100644
--- a/components/test_runner/web_test_delegate.h
+++ b/components/test_runner/web_test_delegate.h
@@ -30,7 +30,6 @@ class WebLocalFrame;
 class WebMediaStream;
 class WebPlugin;
 struct WebPluginParams;
-struct WebPoint;
 struct WebRect;
 struct WebSize;
 struct WebURLError;
@@ -284,10 +283,6 @@ class WebTestDelegate {
     const blink::WebPluginParams& params) = 0;
 
   virtual void OnWebTestProxyBaseDestroy(WebTestProxyBase* proxy) = 0;
-
-  // Convert the position in DIP to native coordinates.
-  virtual blink::WebPoint ConvertDIPToNative(
-      const blink::WebPoint& point_in_dip) const = 0;
 };
 
 }  // namespace test_runner