Fix the scale of Drag and Drop shadow image.

third_party/WebKit/Source/core/frame/LocalFrame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 30 matching lines @@
 #include "core/editing/serializers/Serialization.h"
 #include "core/editing/spellcheck/SpellChecker.h"
 #include "core/events/Event.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/frame/EventHandlerRegistry.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/Settings.h"
+#include "core/frame/VisualViewport.h"
 #include "core/html/HTMLFrameElementBase.h"
 #include "core/html/HTMLPlugInElement.h"
 #include "core/input/EventHandler.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/layout/HitTestResult.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/api/LayoutPartItem.h"
 #include "core/layout/api/LayoutViewItem.h"
 #include "core/layout/compositing/PaintLayerCompositor.h"
 #include "core/loader/FrameLoadRequest.h"
@@ skipping 42 matching lines @@
 // factor included.
 class DragImageBuilder {
     STACK_ALLOCATED();
 public:
     DragImageBuilder(const LocalFrame& localFrame, const FloatRect& bounds)
         : m_localFrame(&localFrame)
         , m_bounds(bounds)
     {
         // TODO(oshima): Remove this when all platforms are migrated to use-zoom-for-dsf.
         float deviceScaleFactor = m_localFrame->host()->deviceScaleFactorDeprecated();
-        m_bounds.setWidth(m_bounds.width() * deviceScaleFactor);
-        m_bounds.setHeight(m_bounds.height() * deviceScaleFactor);
+        float pageScaleFactor = m_localFrame->host()->visualViewport().scale();
+        m_bounds.setWidth(m_bounds.width() * deviceScaleFactor * pageScaleFactor);
+        m_bounds.setHeight(m_bounds.height() * deviceScaleFactor * pageScaleFactor);
         m_pictureBuilder = wrapUnique(new SkPictureBuilder(SkRect::MakeIWH(m_bounds.width(), m_bounds.height())));
 
         AffineTransform transform;
-        transform.scale(deviceScaleFactor, deviceScaleFactor);
+        transform.scale(deviceScaleFactor * pageScaleFactor, deviceScaleFactor * pageScaleFactor);
         transform.translate(-m_bounds.x(), -m_bounds.y());
         context().getPaintController().createAndAppend<BeginTransformDisplayItem>(*m_pictureBuilder, transform);
     }
 
     GraphicsContext& context() { return m_pictureBuilder->context(); }
 
     std::unique_ptr<DragImage> createImage(
         float opacity,
         RespectImageOrientationEnum imageOrientation = DoNotRespectImageOrientation)
     {
@@ skipping 734 matching lines @@
         m_frame->client()->frameBlameContext()->Enter();
 }
 
 ScopedFrameBlamer::~ScopedFrameBlamer()
 {
     if (m_frame && m_frame->client() && m_frame->client()->frameBlameContext())
         m_frame->client()->frameBlameContext()->Leave();
 }
 
 } // namespace blink