Implementing unified Chrome / App Launcher flow, and migrating old stand-alone App Launcher.

chrome/installer/util/util_constants.h

Index: chrome/installer/util/util_constants.h
diff --git a/chrome/installer/util/util_constants.h b/chrome/installer/util/util_constants.h
index bb7b6935c3a33c8db1d1fcf4a59cdb33270975a7..49a2847ec16d9a92c7cc6034fece045ea39b9b34 100644
--- a/chrome/installer/util/util_constants.h
+++ b/chrome/installer/util/util_constants.h
@@ -80,12 +80,14 @@ enum InstallStatus {
   INVALID_STATE_FOR_OPTION,    // 47. A non-install option was called with an
                                // invalid installer state.
   WAIT_FOR_EXISTING_FAILED,    // 48. OS error waiting for existing setup.exe.
+  APP_HOST_SELF_DESTRUCT,      // 49. Old app_host.exe calls the new installer,
+                               // causing itself to be uninstalled.
   // Friendly reminder: note the COMPILE_ASSERT below.
 };
 
 
 // Existing InstallStatus values must not change.  Always add to the end.
-COMPILE_ASSERT(installer::WAIT_FOR_EXISTING_FAILED == 48,
+COMPILE_ASSERT(installer::APP_HOST_SELF_DESTRUCT == 49,
                dont_change_enum);
 
 // The type of an update archive.
@@ -180,7 +182,7 @@ extern const char kToastResultsKey[];
 }  // namespace switches
 
 extern const wchar_t kActiveSetupExe[];
-extern const wchar_t kChromeAppHostExe[];
+extern const wchar_t kChromeAppHostExe[];  // Legacy.
 extern const wchar_t kChromeDll[];
 extern const wchar_t kChromeExe[];
 extern const wchar_t kChromeFrameDll[];