Fixing GestureNav on HDPI displays.

content/browser/web_contents/web_contents_view_aura.cc

Index: content/browser/web_contents/web_contents_view_aura.cc
diff --git a/content/browser/web_contents/web_contents_view_aura.cc b/content/browser/web_contents/web_contents_view_aura.cc
index b048b23098ac0c9b7e63c8f1a20aa38b9d1bc53e..e2a8dbad529c8e7a9757d4dfca8074eed6d660d8 100644
--- a/content/browser/web_contents/web_contents_view_aura.cc
+++ b/content/browser/web_contents/web_contents_view_aura.cc
@@ -134,8 +134,7 @@ class OverscrollWindowDelegate : public ImageWindowDelegate {
     gfx::Image image;
     if (entry && entry->screenshot().get()) {
       std::vector<gfx::ImagePNGRep> image_reps;
-      image_reps.push_back(gfx::ImagePNGRep(entry->screenshot(),
-          ui::GetScaleFactorForNativeView(web_contents_window())));
+      image_reps.push_back(gfx::ImagePNGRep(entry->screenshot(), 1.0f));
       image = gfx::Image(image_reps);
     }
     SetImage(image);