Add a command-line option for specifying a particular build to test and for p...

chrome/test/mini_installer_test/mini_installer_test_util.h

 // Copyright (c) 2009 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.
 //
 // This file declares utility functions for mini installer tests.
 // The reason for putting these functions in different class is to separate out
 // the critical logic from utility methods.
 
 #ifndef CHROME_TEST_MINI_INSTALLER_TEST_MINI_INSTALLER_TEST_UTIL_H_
 #define CHROME_TEST_MINI_INSTALLER_TEST_MINI_INSTALLER_TEST_UTIL_H_
@@ skipping 42 matching lines @@
   // the build is stable/dev/beta.
   static bool GetInstaller(const wchar_t* pattern, std::wstring *name,
                            const wchar_t* channel_type);
 
   // This method will create a command line to run apply tag.
   static bool GetCommandForTagging(std::wstring *return_command);
 
   // Returns the directory containing exe_name.
   static std::wstring GetFilePath(const wchar_t* exe_name);
 
+
   // This method will get the list of all folders or files based on the passed
   // 'path' and 'pattern' argument. The 'pattern' argument decides if the
   // requested file is a full or a differential installer.
   static bool GetLatestFile(const wchar_t* path, const wchar_t* pattern,
                             FileInfoList *file_name);
 
-  // This method will get the previous build number
-  static void GetPreviousBuildNumber(const std::wstring& path,
-      std::wstring *build_number, const wchar_t* channel_type);
+  // This method retrieves the previous build version for the given diff
+  // installer path.
+  static bool GetPreviousBuildNumber(const std::wstring& path,
+      std::wstring *build_number);
 
   // This method will get the previous full installer based on 'diff_file'
   // and 'channel_type' arguments. The 'channel_type'
   // parameter decides if the build is stable/dev/beta. The 'diff_file'
   // parameter will hold the latest diff installer name.
   static bool GetPreviousFullInstaller(const std::wstring& diff_file,
-      std::wstring *previous, const wchar_t* channel_type);
+      std::wstring *previous);
 
   // This method will return standalone installer file name.
   static bool GetStandaloneInstallerFileName(FileInfoList *file_name);
 
   // This method will get the version number from the filename.
   static bool GetStandaloneVersion(std::wstring* version);
 
   // This method will send enter key to window in the foreground.
   static void SendEnterKeyToWindow();
 
   // Verifies if the given process starts running.
   static void VerifyProcessLaunch(const wchar_t* process_name,
                                   bool expected_status);
 
   // Verifies if the given process stops running.
   static bool VerifyProcessClose(const wchar_t* process_name);
 
  private:
   DISALLOW_EVIL_CONSTRUCTORS(MiniInstallerTestUtil);
 };
 
 #endif  // CHROME_TEST_MINI_INSTALLER_TEST_MINI_INSTALLER_TEST_UTIL_H_