PS - Showing permission prompt for activeTab

chrome/browser/chromeos/extensions/active_tab_permission_granter_delegate_chromeos.h

Index: chrome/browser/chromeos/extensions/active_tab_permission_granter_delegate_chromeos.h
diff --git a/chrome/browser/chromeos/extensions/active_tab_permission_granter_delegate_chromeos.h b/chrome/browser/chromeos/extensions/active_tab_permission_granter_delegate_chromeos.h
new file mode 100644
index 0000000000000000000000000000000000000000..5cc936e5f86337055398d055e793cc5651d96332
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+++ b/chrome/browser/chromeos/extensions/active_tab_permission_granter_delegate_chromeos.h
@@ -0,0 +1,39 @@
+// Copyright 2017 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_CHROMEOS_EXTENSIONS_ACTIVE_TAB_PERMISSION_GRANTER_DELEGATE_CHROMEOS_H_
+#define CHROME_BROWSER_CHROMEOS_EXTENSIONS_ACTIVE_TAB_PERMISSION_GRANTER_DELEGATE_CHROMEOS_H_
+
+#include "base/macros.h"
+#include "chrome/browser/extensions/active_tab_permission_granter.h"
+
+namespace content {
+class WebContents;
+}
+
+namespace extensions {
+class Extension;
+
+// In Public Sessions, apps and extensions are force-installed by admin policy
+// so the user does not get a chance to review the permissions for these apps.
+// This is not acceptable from a security standpoint, so we show a permission
+// prompt the first time an extension tries to use activeTab permission (unless
+// the extension is whitelisted).
+class ActiveTabPermissionGranterDelegateChromeOS
+    : public ActiveTabPermissionGranter::Delegate {
+ public:
+  ActiveTabPermissionGranterDelegateChromeOS();
+  ~ActiveTabPermissionGranterDelegateChromeOS() override;
+
+  // ActiveTabPermissionGranter::Delegate
+  bool ActiveTabPermissionGranted(const Extension* extension,
+                                  content::WebContents* web_contents) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ActiveTabPermissionGranterDelegateChromeOS);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_ACTIVE_TAB_PERMISSION_GRANTER_DELEGATE_CHROMEOS_H_