Add test for Chrome install with existing Chrome Frame Multi-install

chrome/test/mini_installer_test/chrome_mini_installer.h

Index: chrome/test/mini_installer_test/chrome_mini_installer.h
diff --git a/chrome/test/mini_installer_test/chrome_mini_installer.h b/chrome/test/mini_installer_test/chrome_mini_installer.h
index 550eb41a3d00a91aa03cdd1fa06f95ed2b4078d2..1c4b4a2d9ed456b11c43e6fd56e0237299df4072 100644
--- a/chrome/test/mini_installer_test/chrome_mini_installer.h
+++ b/chrome/test/mini_installer_test/chrome_mini_installer.h
@@ -26,9 +26,9 @@ class ChromeMiniInstaller {
     VERSION_FOLDER
   };
 
-  // This method returns path to either program files
-  // or documents and setting based on the install type.
-  bool GetChromeInstallDirectoryLocation(FilePath* path);
+  // Get the location at which Chrome or Chrome Frame is installed.
+  bool GetInstallDirectory(FilePath* path);
+
   // Get the base multi-install command.
   CommandLine GetBaseMultiInstallCommand();
 
@@ -122,8 +122,8 @@ class ChromeMiniInstaller {
   // Launch IE with |navigate_url|.
   void LaunchIE(const std::wstring& navigate_url);
 
-  // Run installer using provided |command|.
-  void RunInstaller(const CommandLine& command);
+  // Run the given |command|.

[kkania, 2011/10/31 17:43:38]

I think RunInstaller was a more helpful name. It would be nice to include that
it appends system level switch.

+  void RunCommand(const CommandLine& command);
 
   // Compares the registry key values after overinstall.
   bool VerifyOverInstall(const std::string& reg_key_value_before_overinstall,