Normalize download file name on chromeos

net/base/net_util.cc

Index: net/base/net_util.cc
diff --git a/net/base/net_util.cc b/net/base/net_util.cc
index 2ba3b4688f1dc3718c58f0d03aa52ba211edebb3..21fb07f0a4b9a53f7da3d2b161cf744f1ea8be0f 100644
--- a/net/base/net_util.cc
+++ b/net/base/net_util.cc
@@ -1505,6 +1505,15 @@ FilePath GenerateFileName(const GURL& url,
 #else
   FilePath generated_name(base::SysWideToNativeMB(UTF16ToWide(file_name)));
 #endif
+
+#if defined(OS_CHROMEOS)
+  // When doing file manager operations on ChromeOS, the file paths get
+  // normalized in WebKit layer, so let's ensure downloaded files have
+  // normalized names. Otherwise, we won't be able to handle files with NFD
+  // utf8 encoded characters in name.
+  file_util::NormalizeFileNameEncoding(&generated_name);
+#endif
+
   DCHECK(!generated_name.empty());
 
   return generated_name;