GetScaleFactorForNativeView should return scale factor in float

content/browser/renderer_host/render_view_host_impl.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_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 1283 matching lines @@
           GetProcess()->GetBrowserContext(),
           GetSiteInstance())->GetFileSystemContext();
   filtered_data.file_system_files.clear();
   for (size_t i = 0; i < drop_data.file_system_files.size(); ++i) {
     fileapi::FileSystemURL file_system_url =
         file_system_context->CrackURL(drop_data.file_system_files[i].url);
     if (policy->CanReadFileSystemFile(GetProcess()->GetID(), file_system_url))
       filtered_data.file_system_files.push_back(drop_data.file_system_files[i]);
   }
 
-  float scale = ui::GetImageScale(GetScaleFactorForView(GetView()));
+  float scale = GetScaleFactorForView(GetView());
   gfx::ImageSkia image(gfx::ImageSkiaRep(bitmap, scale));
   view->StartDragging(filtered_data, drag_operations_mask, image,
       bitmap_offset_in_dip, event_info);
 }
 
 void RenderViewHostImpl::OnUpdateDragCursor(WebDragOperation current_op) {
   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
   if (view)
     view->UpdateDragCursor(current_op);
 }
@@ skipping 378 matching lines @@
   return true;
 }
 
 void RenderViewHostImpl::AttachToFrameTree() {
   FrameTree* frame_tree = delegate_->GetFrameTree();
 
   frame_tree->ResetForMainFrameSwap();
 }
 
 }  // namespace content