[Extensions] Show enterprise policy icon in the context menu when unremovable

chrome/browser/extensions/extension_context_menu_model.cc

Index: chrome/browser/extensions/extension_context_menu_model.cc
diff --git a/chrome/browser/extensions/extension_context_menu_model.cc b/chrome/browser/extensions/extension_context_menu_model.cc
index 492f0289e593af770f8ea7cffb3aa117ad9a4678..281a7fe6d96474e2ea097f567ee04345e6a1712e 100644
--- a/chrome/browser/extensions/extension_context_menu_model.cc
+++ b/chrome/browser/extensions/extension_context_menu_model.cc
@@ -306,8 +306,22 @@ void ExtensionContextMenuModel::InitMenu(const Extension* extension,
   if (!is_component_ || extensions::OptionsPageInfo::HasOptionsPage(extension))
     AddItemWithStringId(CONFIGURE, IDS_EXTENSIONS_OPTIONS_MENU_ITEM);
 
-  if (!is_component_)
-    AddItem(UNINSTALL, l10n_util::GetStringUTF16(IDS_EXTENSIONS_UNINSTALL));
+  if (!is_component_) {
+    extensions::ManagementPolicy* policy =
+      extensions::ExtensionSystem::Get(profile_)->management_policy();
+    bool is_required_by_policy =
+        !policy->UserMayModifySettings(extension, nullptr) ||
+        policy->MustRemainInstalled(extension, nullptr);
+    int message_id = is_required_by_policy ?
+        IDS_EXTENSIONS_INSTALLED_BY_ADMIN : IDS_EXTENSIONS_UNINSTALL;
+    AddItem(UNINSTALL, l10n_util::GetStringUTF16(message_id));
+    if (is_required_by_policy) {
+      int uninstall_index = GetIndexOfCommandId(UNINSTALL);
+      SetIcon(uninstall_index,
+              ui::ResourceBundle::GetSharedInstance().GetImageNamed(
+                  IDR_CONTROLLED_SETTING_MANDATORY));
+    }
+  }
 
   // Add a toggle visibility (show/hide) if the extension icon is shown on the
   // toolbar.