Disable registering, unregistering, and setting default browser...

chrome/installer/setup/uninstall.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 the methods useful for uninstalling Chrome.
 
 #include "chrome/installer/setup/uninstall.h"
 
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 321 matching lines @@
   }
 
   return installer_util::UNINSTALL_CONFIRMED;
 }
 }  // namespace
 
 
 bool installer_setup::DeleteChromeRegistrationKeys(HKEY root,
     const std::wstring& browser_entry_suffix,
     installer_util::InstallStatus& exit_code) {
+  if (!BrowserDistribution::GetDistribution()->CanSetAsDefault()) {
+    // We should have never set those keys.
+    return true;
+  }
+
   RegKey key(root, L"", KEY_ALL_ACCESS);
 
   // Delete Software\Classes\ChromeHTML,
   std::wstring html_prog_id(ShellUtil::kRegClasses);
   file_util::AppendToPath(&html_prog_id, ShellUtil::kChromeHTMLProgId);
   html_prog_id.append(browser_entry_suffix);
   DeleteRegistryKey(key, html_prog_id);
 
   // Delete Software\Clients\StartMenuInternet\Chromium
   BrowserDistribution* dist = BrowserDistribution::GetDistribution();
@@ skipping 150 matching lines @@
 
   // For user level install also we end up creating some keys in HKLM if user
   // sets Chrome as default browser. So delete those as well (needs admin).
   if (remove_all && !system_uninstall &&
       (!suffix.empty() || CurrentUserHasDefaultBrowser(system_uninstall)))
     DeleteChromeRegistrationKeys(HKEY_LOCAL_MACHINE, suffix, ret);
 
   // Delete shared registry keys as well (these require admin rights) if
   // remove_all option is specified.
   if (remove_all) {
-    // Delete media player registry key that exists only in HKLM.
-    RegKey hklm_key(HKEY_LOCAL_MACHINE, L"", KEY_ALL_ACCESS);
-    std::wstring reg_path(installer::kMediaPlayerRegPath);
-    file_util::AppendToPath(&reg_path, installer_util::kChromeExe);
-    DeleteRegistryKey(hklm_key, reg_path);
-    hklm_key.Close();
+    if (!InstallUtil::IsChromeSxSProcess()) {
+      // Delete media player registry key that exists only in HKLM.
+      // We don't delete this key in SxS uninstall.
+      RegKey hklm_key(HKEY_LOCAL_MACHINE, L"", KEY_ALL_ACCESS);
+      std::wstring reg_path(installer::kMediaPlayerRegPath);
+      file_util::AppendToPath(&reg_path, installer_util::kChromeExe);
+      DeleteRegistryKey(hklm_key, reg_path);
+      hklm_key.Close();
+    }
 
     if (installed_version.get()) {
       // Unregister any dll servers that we may have registered.
       std::wstring dll_path(installer::GetChromeInstallPath(system_uninstall));
       file_util::AppendToPath(&dll_path, installed_version->GetString());
 
       scoped_ptr<WorkItemList> dll_list(WorkItem::CreateWorkItemList());
       if (InstallUtil::BuildDLLRegistrationList(dll_path, kDllsToRegister,
                                                 kNumDllsToRegister, false,
                                                 dll_list.get())) {
@@ skipping 26 matching lines @@
                                     distribution_data);
   }
 
   // Try and delete the preserved local state once the post-install
   // operations are complete.
   if (!local_state_path.empty())
     file_util::Delete(local_state_path, false);
 
   return ret;
 }