Initialize device scale factor correctly on Android

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 546 matching lines @@
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(
     WebKit::WebScreenInfo* results) {
   DeviceInfo info;
   const int width = info.GetWidth();
   const int height = info.GetHeight();
   results->horizontalDPI = 160 * info.GetDPIScale();
   results->verticalDPI = 160 * info.GetDPIScale();
+  results->deviceScaleFactor = info.GetDPIScale();
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
   results->rect = WebKit::WebRect(0, 0, width, height);
   // TODO(husky): Remove any system controls from availableRect.
   results->availableRect = WebKit::WebRect(0, 0, width, height);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostView, public:
 
 // static
 RenderWidgetHostView*
 RenderWidgetHostView::CreateViewForWidget(RenderWidgetHost* widget) {
   RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(widget);
   return new RenderWidgetHostViewAndroid(rwhi, NULL);
 }
 
 } // namespace content