Use the screen info's scale factor to scale the drag image

third_party/WebKit/Source/web/WebViewImpl.cpp

Index: third_party/WebKit/Source/web/WebViewImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebViewImpl.cpp b/third_party/WebKit/Source/web/WebViewImpl.cpp
index 7be5f1006676c7800988794aeae343f3fe494fa6..1a856af3d6c079d30b22f3430e6183635af47444 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.cpp
+++ b/third_party/WebKit/Source/web/WebViewImpl.cpp
@@ -3211,14 +3211,6 @@ void WebViewImpl::setPageScaleFactor(float scaleFactor)
     page()->frameHost().visualViewport().setScale(scaleFactor);
 }
 
-float WebViewImpl::deviceScaleFactor() const
-{
-    if (!page())
-        return 1;
-
-    return page()->deviceScaleFactor();
-}
-
 void WebViewImpl::setDeviceScaleFactor(float scaleFactor)
 {
     if (!page())
@@ -4632,4 +4624,14 @@ void WebViewImpl::detachPaintArtifactCompositor()
     m_layerTreeView->clearRootLayer();
 }
 
+float WebViewImpl::deviceScaleFactor() const
+{
+    // TODO(oshima): Investigate if this should return the ScreenInfo's scale factor rather than
+    // page's scale factor, which can be 1 in use-zoom-for-dsf mode.
+    if (!page())
+        return 1;
+
+    return page()->deviceScaleFactor();
+}
+
 } // namespace blink