Adds the 6-month flag functionality back into the criteria checker,...

chrome/installer/gcapi/gcapi.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_INSTALLER_GCAPI_GCAPI_H_
 #define CHROME_INSTALLER_GCAPI_GCAPI_H_
 
 #include <windows.h>
 
 extern "C" {
 // Error conditions for GoogleChromeCompatibilityCheck().
 #define GCCC_ERROR_USERLEVELALREADYPRESENT       0x01
 #define GCCC_ERROR_SYSTEMLEVELALREADYPRESENT     0x02
 #define GCCC_ERROR_ACCESSDENIED                  0x04
 #define GCCC_ERROR_OSNOTSUPPORTED                0x08
 #define GCCC_ERROR_ALREADYOFFERED                0x10
 #define GCCC_ERROR_INTEGRITYLEVEL                0x20
 
 #define DLLEXPORT __declspec(dllexport)
 
 // This function returns TRUE if Google Chrome should be offered.
 // If the return is FALSE, the reasons DWORD explains why.  If you don't care
 // for the reason, you can pass NULL for reasons.
-DLLEXPORT BOOL __stdcall GoogleChromeCompatibilityCheck(DWORD *reasons);
+// set_flag indicates whether a flag should be set indicating that Chrome was
+// offered within the last six months; if passed FALSE, this method will not
+// set the flag even if Chrome can be offered.  If passed TRUE, this method 
+// will set the flag only if Chrome can be offered.
+DLLEXPORT BOOL __stdcall GoogleChromeCompatibilityCheck(BOOL set_flag, 
+                                                        DWORD *reasons);
 
 // This function launches Google Chrome after a successful install. Make
 // sure COM library is NOT initalized before you call this function (so if
 // you called CoInitialize, call CoUninitialize before calling this function).
 DLLEXPORT BOOL __stdcall LaunchGoogleChrome();
 
 // Funtion pointer type declarations to use with GetProcAddress.
-typedef BOOL (__stdcall * GCCC_CompatibilityCheck)(DWORD *);
+typedef BOOL (__stdcall * GCCC_CompatibilityCheck)(BOOL, DWORD *);
 typedef BOOL (__stdcall * GCCC_LaunchGC)(HANDLE *);
 }  // extern "C" 
 
 #endif  // # CHROME_INSTALLER_GCAPI_GCAPI_H_