Launch Google Update on uninstall.

chrome/installer/setup/setup_main.cc

Index: chrome/installer/setup/setup_main.cc
diff --git a/chrome/installer/setup/setup_main.cc b/chrome/installer/setup/setup_main.cc
index 4d0c8450342d72ead97cbf93d5d38750ac68f514..6466500e26598621e2e3576e5f8320304d4a7ec8 100644
--- a/chrome/installer/setup/setup_main.cc
+++ b/chrome/installer/setup/setup_main.cc
@@ -834,6 +834,36 @@ installer::InstallStatus UninstallProduct(
       cmd_line.GetProgram(), product, remove_all, force_uninstall, cmd_line);
 }
 
+// Tell Google Update that an uninstall has taken place.  This gives it a chance
+// to uninstall itself straight away if no more products are installed on the
+// system rather than waiting for the next time the scheduled task runs.
+// Success or failure of Google Update has no bearing on the success or failure
+// of Chrome's uninstallation.
+void UninstallGoogleUpdate(bool system_install) {
+  string16 uninstall_cmd(
+      GoogleUpdateSettings::GetUninstallCommandLine(system_install));
+  if (!uninstall_cmd.empty()) {
+    base::ProcessHandle process = base::kNullProcessHandle;
+    base::LaunchOptions launch_options;
+    launch_options.wait = true;
+    LOG(INFO) << "Launching Google Update's uninstaller: " << uninstall_cmd;
+    if (base::LaunchProcess(uninstall_cmd, launch_options, &process)) {

[erikwright (departed), 2012/03/13 20:55:20]

Can you use ScopedHandle::Receive instead of an interim base::ProcessHandle? It
returns a HANDLE*, but ProcessHandle is typedef'd to HANDLE anyway.

[grt (UTC plus 2), 2012/03/14 13:47:02]

Awesome, thanks for the pointer (Receive() didn't exist the last time I used
ScopedHandle).

+      base::win::ScopedHandle process_handle(process);
+      int exit_code = 0;
+      if (base::GetTerminationStatus(process, &exit_code) ==
+              base::TERMINATION_STATUS_NORMAL_TERMINATION) {
+        LOG(INFO) << "  normal exit.";
+      } else {
+        LOG(ERROR) << "Google Update uninstaller (" << uninstall_cmd
+                   << ") exited with code " << exit_code << ".";
+      }
+    } else {
+      PLOG(ERROR) << "Failed to launch Google Update's uninstaller ("
+                  << uninstall_cmd << ")";
+    }
+  }
+}
+
 installer::InstallStatus UninstallProducts(
     const InstallationState& original_state,
     const InstallerState& installer_state,
@@ -860,6 +890,8 @@ installer::InstallStatus UninstallProducts(
       install_status = prod_status;
   }
 
+  UninstallGoogleUpdate(installer_state.system_install());
+
   return install_status;
 }