Remove old pinch-zoom paths from Blink

Source/core/dom/ViewportDescription.cpp

Index: Source/core/dom/ViewportDescription.cpp
diff --git a/Source/core/dom/ViewportDescription.cpp b/Source/core/dom/ViewportDescription.cpp
index c0b773a8d31c5ed6ce13b645ff223ac358bb2a44..82f16cb93b54d0ed9099472f4257a9ca4ec80371 100644
--- a/Source/core/dom/ViewportDescription.cpp
+++ b/Source/core/dom/ViewportDescription.cpp
@@ -238,9 +238,7 @@ void ViewportDescription::reportMobilePageStats(const LocalFrame* mainFrame) con
                 // To get an idea of how "far" the viewport is from the device's ideal width, we
                 // report the zoom level that we'd need to be at for the entire page to be visible.
                 int viewportWidth = maxWidth.intValue();
-                int windowWidth = mainFrame->document()->settings()->pinchVirtualViewportEnabled()
-                    ? mainFrame->host()->pinchViewport().size().width()
-                    : mainFrame->view()->frameRect().width();
+                int windowWidth = mainFrame->host()->pinchViewport().size().width();
                 int overviewZoomPercent = 100 * windowWidth / static_cast<float>(viewportWidth);
                 Platform::current()->histogramSparse("Viewport.OverviewZoom", overviewZoomPercent);
             }