Replace the WAS_INSTALLED_BY_CUSTODIAN creation flag with a pref

chrome/browser/extensions/extension_util.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_UTIL_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_UTIL_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 45 matching lines @@
 bool AllowFileAccess(const std::string& extension_id,
                      content::BrowserContext* context);
 
 // Sets whether |extension_id| can inject scripts into pages with file URLs.
 // Reloads the extension if it's enabled since this permission is applied at
 // loading time only. Note than an ExtensionService must exist.
 void SetAllowFileAccess(const std::string& extension_id,
                         content::BrowserContext* context,
                         bool allow);
 
+// Returns true if this extension has been installed by the custodian of
+// a supervised user. It is relevant for supervised users and used to block
+// them from uninstalling the extension for example.
+bool WasInstalledByCustodian(const std::string& extension_id,
+                             content::BrowserContext* context);
+
+// Sets whether |extension_id| is installed by a custodian.
+// This is relevant for supervised users and is used to limit their privileges
+// for extensions installed by their custodians (e.g. supervised users cannot
+// uninstall such extensions).
+void SetWasInstalledByCustodian(const std::string& extension_id,
+                                content::BrowserContext* context,
+                                bool installed_by_custodian);
+
 // Returns true if the extension with |extension_id| is allowed to execute
 // scripts on all urls (exempting chrome:// urls, etc) without explicit
 // user consent.
 // This should only be used with FeatureSwitch::scripts_require_action()
 // enabled.
 bool AllowedScriptingOnAllUrls(const std::string& extension_id,
                                content::BrowserContext* context);
 
 // Returns the default value for being allowed to script on all urls.
 bool DefaultAllowedScriptingOnAllUrls();
@@ skipping 48 matching lines @@
 //
 // TODO(benwells): http://crbug.com/441128: Remove this entirely once the
 // feature is stable.
 bool IsNewBookmarkAppsEnabled();
 
 // TODO(dominickn): http://crbug.com/517682: Remove this entirely once
 // open in window is stable on Mac.
 bool CanHostedAppsOpenInWindows();
 
 // Returns true for custodian-installed extensions in a supervised profile.
-bool IsExtensionSupervised(const Extension* extension, const Profile* profile);
+bool IsExtensionSupervised(const Extension* extension, Profile* profile);
 
 // Returns true if supervised users need approval from their custodian for
 // approving escalated permissions on updated extensions.
 bool NeedCustodianApprovalForPermissionIncrease(const Profile* profile);
 
 }  // namespace util
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_UTIL_H_