Delete Chrome state in registry on uninstall when the user profile is being deleted.

chrome/installer/setup/setup_util.h

 // Copyright (c) 2012 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 declares util functions for setup project. It also declares a
 // few functions that the Chrome component updater uses for patching binary
 // deltas.
 
 #ifndef CHROME_INSTALLER_SETUP_SETUP_UTIL_H_
 #define CHROME_INSTALLER_SETUP_SETUP_UTIL_H_
 
 #include <windows.h>
 
+#include <vector>
+
 #include "base/basictypes.h"
 #include "base/strings/string16.h"
 #include "base/win/scoped_handle.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/util_constants.h"
 
 class AppRegistrationData;
 
 namespace base {
 class CommandLine;
@@ skipping 93 matching lines @@
 bool ContainsUnsupportedSwitch(const base::CommandLine& cmd_line);
 
 // Returns true if the processor is supported by chrome.
 bool IsProcessorSupported();
 
 // Returns the "...\\Commands\\|name|" registry key for a product's |reg_data|.
 base::string16 GetRegistrationDataCommandKey(
     const AppRegistrationData& reg_data,
     const wchar_t* name);
 
+// Deletes all values and subkeys of the key |path| under |root|, preserving
+// the keys named in |keys_to_preserve| (each of which must be an ASCII string).
+// The key itself is deleted if no subkeys are preserved.
+void DeleteRegistryKeyPartial(
+    HKEY root,
+    const base::string16& path,
+    const std::vector<base::string16>& keys_to_preserve);
+
 // This class will enable the privilege defined by |privilege_name| on the
 // current process' token. The privilege will be disabled upon the
 // ScopedTokenPrivilege's destruction (unless it was already enabled when the
 // ScopedTokenPrivilege object was constructed).
 // Some privileges might require admin rights to be enabled (check is_enabled()
 // to know whether |privilege_name| was successfully enabled).
 class ScopedTokenPrivilege {
  public:
   explicit ScopedTokenPrivilege(const wchar_t* privilege_name);
   ~ScopedTokenPrivilege();
@@ skipping 12 matching lines @@
   // The previous state of the privilege this object is responsible for. As set
   // by AdjustTokenPrivileges() upon construction.
   TOKEN_PRIVILEGES previous_privileges_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ScopedTokenPrivilege);
 };
 
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_SETUP_SETUP_UTIL_H_