Use FilePaths in content::DropData to avoid redundant conversions.

content/renderer/render_view_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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 590 matching lines @@
 
   if (!drop_data.html.is_null()) {
     WebDragData::Item item;
     item.storageType = WebDragData::Item::StorageTypeString;
     item.stringType = WebString::fromUTF8(ui::Clipboard::kMimeTypeHTML);
     item.stringData = drop_data.html.string();
     item.baseURL = drop_data.html_base_url;
     item_list.push_back(item);
   }
 
-  for (std::vector<DropData::FileInfo>::const_iterator it =
+  for (std::vector<ui::FileInfo>::const_iterator it =
            drop_data.filenames.begin();
        it != drop_data.filenames.end();
        ++it) {
     WebDragData::Item item;
     item.storageType = WebDragData::Item::StorageTypeFilename;
-    item.filenameData = it->path;
-    item.displayNameData = it->display_name;
+    item.filenameData = it->path.AsUTF16Unsafe();
+    item.displayNameData = it->display_name.AsUTF16Unsafe();
     item_list.push_back(item);
   }
 
   for (std::map<base::string16, base::string16>::const_iterator it =
            drop_data.custom_data.begin();
        it != drop_data.custom_data.end();
        ++it) {
     WebDragData::Item item;
     item.storageType = WebDragData::Item::StorageTypeString;
     item.stringType = it->first;
@@ skipping 4340 matching lines @@
     std::vector<gfx::Size> sizes(icon_urls[i].sizes().size());
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content