Unify HasGDocFileExtension and IsHostedDocumentByExtentoin.

chrome/browser/drive/drive_api_util.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 "chrome/browser/drive/drive_api_util.h"
 
 #include <string>
 
 #include "base/files/file.h"
 #include "base/logging.h"
@@ skipping 350 matching lines @@
 }
 
 bool IsHostedDocument(const std::string& mime_type) {
   for (size_t i = 0; i < arraysize(kHostedDocumentKinds); ++i) {
     if (mime_type == kHostedDocumentKinds[i].mime_type)
       return true;
   }
   return false;
 }
 
-bool IsHostedDocumentByExtension(const std::string& extension) {
+bool HasHostedDocumentExtension(const base::FilePath& path) {
+  const std::string extension = base::FilePath(path.Extension()).AsUTF8Unsafe();
   for (size_t i = 0; i < arraysize(kHostedDocumentKinds); ++i) {
     if (extension == kHostedDocumentKinds[i].extension)
       return true;
   }
   return false;
 }
 
 }  // namespace util
 }  // namespace drive