Separate version env variable for different distributions.

chrome/installer/util/chrome_frame_distribution.cc

 // 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 defines a specific implementation of BrowserDistribution class for
 // Chrome Frame. It overrides the bare minimum of methods necessary to get a
 // Chrome Frame installer that does not interact with Google Chrome or
 // Chromium installations.
 
 #include "chrome/installer/util/chrome_frame_distribution.h"
@@ skipping 79 matching lines @@
          L"Google Chrome Frame";
 }
 
 std::wstring ChromeFrameDistribution::GetVersionKey() {
   std::wstring key(google_update::kRegPathClients);
   key.append(L"\\");
   key.append(kChromeFrameGuid);
   return key;
 }
 
+std::wstring ChromeFrameDistribution::GetEnvVersionKey() {
+  return L"CHROME_FRAME_VERSION";
+}
+
 bool ChromeFrameDistribution::CanSetAsDefault() {
   return false;
 }
 
 void ChromeFrameDistribution::UpdateDiffInstallStatus(bool system_install,
     bool incremental_install, installer_util::InstallStatus install_status) {
   HKEY reg_root = (system_install) ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
   RegKey key;
   std::wstring ap_key_value;
   std::wstring reg_key(google_update::kRegPathClientState);
   reg_key.append(L"\\");
   reg_key.append(kChromeFrameGuid);
   if (!key.Open(reg_root, reg_key.c_str(), KEY_ALL_ACCESS) ||
       !key.ReadValue(google_update::kRegApField, &ap_key_value)) {
     LOG(INFO) << "Application key not found.";
   } else {
     const char kMagicSuffix[] = "-full";
     if (LowerCaseEqualsASCII(ap_key_value, kMagicSuffix)) {
       key.DeleteValue(google_update::kRegApField);
     } else {
       size_t pos = ap_key_value.find(ASCIIToWide(kMagicSuffix));
       if (pos != std::wstring::npos) {
         ap_key_value.erase(pos, strlen(kMagicSuffix));
         key.WriteValue(google_update::kRegApField, ap_key_value.c_str());
       }
     }
   }
 }