Normalize download file name on chromeos

chrome/browser/download/download_util.cc

Index: chrome/browser/download/download_util.cc
diff --git a/chrome/browser/download/download_util.cc b/chrome/browser/download/download_util.cc
index ab1bb68261caeab38fba1192bd3c4fa7f533de64..f608e81f12470e9a4c6c8d0a22ad863bfd047433 100644
--- a/chrome/browser/download/download_util.cc
+++ b/chrome/browser/download/download_util.cc
@@ -12,6 +12,7 @@
 #include <string>
 
 #include "base/file_util.h"
+#include "base/i18n/icu_string_conversions.h"
 #include "base/i18n/rtl.h"
 #include "base/i18n/time_formatting.h"
 #include "base/lazy_instance.h"
@@ -162,6 +163,17 @@ void GenerateFileNameFromRequest(const DownloadItem& download_item,
                                           default_file_name);
 }
 
+void NormalizeFileNameOnChromeOS(FilePath* file_name) {
+#if defined(OS_CHROMEOS)
+  std::string normalized_str;
+  if (base::ConvertToUtf8AndNormalize(file_name->value(),
+                                      base::kCodepageUTF8,
+                                      &normalized_str)) {
+    *file_name = FilePath(normalized_str);
+  }
+#endif
+}
+
 // Download progress painting --------------------------------------------------
 
 // Common bitmaps used for download progress animations. We load them once the