image-skia: Remove implicit conversion to SkBitmap on linux and chromeos.

content/browser/web_contents/web_contents_drag_win.cc

Index: content/browser/web_contents/web_contents_drag_win.cc
diff --git a/content/browser/web_contents/web_contents_drag_win.cc b/content/browser/web_contents/web_contents_drag_win.cc
index ccc26133039c84487d5af6bbcd8c33e1b4dfbff9..edd4624032fd27b43d756c0c90c4e3a2360b88c5 100644
--- a/content/browser/web_contents/web_contents_drag_win.cc
+++ b/content/browser/web_contents/web_contents_drag_win.cc
@@ -28,7 +28,9 @@
 #include "ui/base/clipboard/clipboard_util_win.h"
 #include "ui/base/clipboard/custom_data_helper.h"
 #include "ui/base/dragdrop/drag_utils.h"
+#include "ui/base/layout.h"
 #include "ui/gfx/image/image_skia.h"
+#include "ui/gfx/screen.h"
 #include "ui/gfx/size.h"
 #include "webkit/glue/webdropdata.h"
 
@@ -148,10 +150,15 @@ void WebContentsDragWin::StartDragging(const WebDropData& drop_data,
   base::Thread::Options options;
   options.message_loop_type = MessageLoop::TYPE_UI;
   if (drag_drop_thread_->StartWithOptions(options)) {
+    gfx::Display display =
+        gfx::Screen::GetDisplayNearestWindow(web_contents_->GetNativeView());
+    ui::ScaleFactor scale_factor = ui::GetScaleFactorFromScale(
+        display.device_scale_factor());
     drag_drop_thread_->message_loop()->PostTask(
         FROM_HERE,
         base::Bind(&WebContentsDragWin::StartBackgroundDragging, this,
-                   drop_data, ops, page_url, page_encoding, image,
+                   drop_data, ops, page_url, page_encoding,
+                   image.GetRepresentation(scale_factor).sk_bitmap(),
                    image_offset));
   }