3 files changed, 7 insertions, 0 deletions
diff --git a/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.cpp b/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.cpp
index 039c23218..a12ef553b 100644
--- a/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.cpp
+++ b/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.cpp
@@ -1362,6 +1362,10 @@ QWebPageAdapter::ViewportAttributes QWebPageAdapter::viewportAttributesForSize(c
     return result;
 }
 
+void QWebPageAdapter::setDevicePixelRatio(int devicePixelRatio)
+{
+    page->setDeviceScaleFactor(devicePixelRatio);
+}
 
 bool QWebPageAdapter::handleKeyEvent(QKeyEvent *ev)
 {
diff --git a/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.h b/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.h
index 09d569c0f..3b6fc3a5c 100644
--- a/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.h
+++ b/Source/WebKit/qt/WebCoreSupport/QWebPageAdapter.h
@@ -352,6 +352,7 @@ public:
     };
 
     ViewportAttributes viewportAttributesForSize(const QSize& availableSize, const QSize& deviceSize) const;
+    void setDevicePixelRatio(int devicePixelRatio);
 
     QWebSettings *settings;
 
diff --git a/Source/WebKit/qt/WidgetApi/qwebpage.cpp b/Source/WebKit/qt/WidgetApi/qwebpage.cpp
index 48c9bf365..dac343bd2 100644
--- a/Source/WebKit/qt/WidgetApi/qwebpage.cpp
+++ b/Source/WebKit/qt/WidgetApi/qwebpage.cpp
@@ -1945,6 +1945,8 @@ void QWebPage::setViewportSize(const QSize &size) const
     if (!mainFrame->hasView())
         return;
 
+    d->setDevicePixelRatio(d->view->devicePixelRatio());
+
     mainFrame->setViewportSize(size);
 }