Fix convert_dict to look for .dic_delta rather than _delta.dic

chrome/tools/convert_dict/dic_reader.cc

Index: chrome/tools/convert_dict/dic_reader.cc
diff --git a/chrome/tools/convert_dict/dic_reader.cc b/chrome/tools/convert_dict/dic_reader.cc
index c8ee113cc521eb8131d4bc25c5ba6cf2d29fa14e..0475eff53c81df7614c1fdb46ab063d146e627fd 100644
--- a/chrome/tools/convert_dict/dic_reader.cc
+++ b/chrome/tools/convert_dict/dic_reader.cc
@@ -132,8 +132,13 @@ DicReader::DicReader(const FilePath& path) {
   file_ = file_util::OpenFile(path, "r");
 
   FilePath additional_path =
-      path.InsertBeforeExtension(FILE_PATH_LITERAL("_delta"));
+      path.ReplaceExtension(FILE_PATH_LITERAL("dic_delta"));
   additional_words_file_ = file_util::OpenFile(additional_path, "r");
+
+  if (additional_words_file_)
+    printf("Reading %" PRFilePath " ...\n", additional_path.value().c_str());
+  else
+    printf("%" PRFilePath " not found.\n", additional_path.value().c_str());
 }
 
 DicReader::~DicReader() {