Make sure proper double tap scale gets recorded for next double tap.

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index 6aa55a38178b5123f60aa692689d3f7b80e15cb9..500e241847347b447f73a36ff0a29e7ff443412e 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -1276,7 +1276,8 @@ void WebViewImpl::animateDoubleTapZoom(const IntPoint& point)
     bool isAnimating;
 
     if (doubleTapShouldZoomOut) {
-        isAnimating = startPageScaleAnimation(mainFrameImpl()->frameView()->windowToContents(point), true, minimumPageScaleFactor(), doubleTapZoomAnimationDurationInSeconds);
+        scale = minimumPageScaleFactor();
+        isAnimating = startPageScaleAnimation(mainFrameImpl()->frameView()->windowToContents(point), true, scale, doubleTapZoomAnimationDurationInSeconds);
     } else {
         isAnimating = startPageScaleAnimation(scroll, false, scale, doubleTapZoomAnimationDurationInSeconds);
     }