[Extensions UI] Update extensions page to use api methods for permissions prompt

chrome/browser/extensions/api/developer_private/show_permissions_dialog_helper.h

Index: chrome/browser/extensions/api/developer_private/show_permissions_dialog_helper.h
diff --git a/chrome/browser/extensions/api/developer_private/show_permissions_dialog_helper.h b/chrome/browser/extensions/api/developer_private/show_permissions_dialog_helper.h
new file mode 100644
index 0000000000000000000000000000000000000000..e092b6c6d37a0d4ebe280d918a6c48b32dbb407e
--- /dev/null
+++ b/chrome/browser/extensions/api/developer_private/show_permissions_dialog_helper.h
@@ -0,0 +1,53 @@
+// Copyright 2015 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_API_DEVELOPER_PRIVATE_SHOW_PERMISSIONS_DIALOG_HELPER_H_
+#define CHROME_BROWSER_EXTENSIONS_API_DEVELOPER_PRIVATE_SHOW_PERMISSIONS_DIALOG_HELPER_H_
+
+#include "base/bind.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/extensions/extension_install_prompt.h"
+
+class Profile;
+
+namespace content {
+class BrowserContext;
+class WebContents;
+}
+
+namespace extensions {
+class Extension;
+
+class ShowPermissionsDialogHelper : public ExtensionInstallPrompt::Delegate {
+ public:
+  ShowPermissionsDialogHelper();
+  ~ShowPermissionsDialogHelper() override;
+
+  void Show(content::WebContents* web_contents,
+            content::BrowserContext* browser_context,
+            const Extension* extension,
+            bool from_extensions_page,
+            const base::Closure& on_complete);
+
+ private:
+  // ExtensionInstallPrompt::Delegate:
+  void InstallUIProceed() override;
+  void InstallUIAbort(bool user_initiated) override;
+
+  void AppInfoDialogClosed();
+
+  base::Closure on_complete_callback_;
+
+  scoped_ptr<ExtensionInstallPrompt> prompt_;
+
+  Profile* profile_;
+
+  std::string extension_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShowPermissionsDialogHelper);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_DEVELOPER_PRIVATE_SHOW_PERMISSIONS_DIALOG_HELPER_H_