Unify HasGDocFileExtension and IsHostedDocumentByExtentoin.

chrome/browser/chromeos/drive/file_system_util_unittest.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/chromeos/drive/file_system_util.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 234 matching lines @@
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
   GURL url("https://docs.google.com/document/d/"
            "1YsCnrMxxgp7LDdtlFDt-WdtEIth89vA9inrILtvK-Ug/edit");
   std::string resource_id("1YsCnrMxxgp7LDdtlFDt-WdtEIth89vA9inrILtvK-Ug");
 
   // Read and write gdoc.
   base::FilePath file = temp_dir.path().AppendASCII("test.gdoc");
   EXPECT_TRUE(CreateGDocFile(file, url, resource_id));
-  EXPECT_TRUE(HasGDocFileExtension(file));
   EXPECT_EQ(url, ReadUrlFromGDocFile(file));
   EXPECT_EQ(resource_id, ReadResourceIdFromGDocFile(file));
 
   // Read and write gsheet.
   file = temp_dir.path().AppendASCII("test.gsheet");
   EXPECT_TRUE(CreateGDocFile(file, url, resource_id));
-  EXPECT_TRUE(HasGDocFileExtension(file));
   EXPECT_EQ(url, ReadUrlFromGDocFile(file));
   EXPECT_EQ(resource_id, ReadResourceIdFromGDocFile(file));
 
   // Read and write gslides.
   file = temp_dir.path().AppendASCII("test.gslides");
   EXPECT_TRUE(CreateGDocFile(file, url, resource_id));
-  EXPECT_TRUE(HasGDocFileExtension(file));
   EXPECT_EQ(url, ReadUrlFromGDocFile(file));
   EXPECT_EQ(resource_id, ReadResourceIdFromGDocFile(file));
 
   // Read and write gdraw.
   file = temp_dir.path().AppendASCII("test.gdraw");
   EXPECT_TRUE(CreateGDocFile(file, url, resource_id));
-  EXPECT_TRUE(HasGDocFileExtension(file));
   EXPECT_EQ(url, ReadUrlFromGDocFile(file));
   EXPECT_EQ(resource_id, ReadResourceIdFromGDocFile(file));
 
   // Read and write gtable.
   file = temp_dir.path().AppendASCII("test.gtable");
   EXPECT_TRUE(CreateGDocFile(file, url, resource_id));
-  EXPECT_TRUE(HasGDocFileExtension(file));
   EXPECT_EQ(url, ReadUrlFromGDocFile(file));
   EXPECT_EQ(resource_id, ReadResourceIdFromGDocFile(file));
 
   // Non GDoc file.
   file = temp_dir.path().AppendASCII("test.txt");
   std::string data = "Hello world!";
   EXPECT_TRUE(google_apis::test_util::WriteStringToFile(file, data));
-  EXPECT_FALSE(HasGDocFileExtension(file));
   EXPECT_TRUE(ReadUrlFromGDocFile(file).is_empty());
   EXPECT_TRUE(ReadResourceIdFromGDocFile(file).empty());
 }
 
 }  // namespace util
 }  // namespace drive