Reverting this as it caused installer_unit_tests to fail. Please fix and rela...

chrome/installer/util/google_chrome_distribution.h

Index: chrome/installer/util/google_chrome_distribution.h
===================================================================
--- chrome/installer/util/google_chrome_distribution.h	(revision 49358)
+++ chrome/installer/util/google_chrome_distribution.h	(working copy)
@@ -38,6 +38,21 @@
 
   virtual std::wstring GetInstallSubDir();
 
+  // This method generates the new value for Google Update "ap" key for Chrome
+  // based on whether we are doing incremental install (or not) and whether
+  // the install succeeded.
+  // - If install worked, remove the magic string (if present).
+  // - If incremental installer failed, append a magic string (if
+  //   not present already).
+  // - If full installer failed, still remove this magic
+  //   string (if it is present already).
+  //
+  // diff_install: tells whether this is incremental install or not.
+  // install_status: if 0, means installation was successful.
+  // value: current value of Google Update "ap" key.
+  std::wstring GetNewGoogleUpdateApKey(bool diff_install,
+      installer_util::InstallStatus status, const std::wstring& value);
+
   virtual std::wstring GetPublisherName();
 
   virtual std::wstring GetAppDescription();