Implement a permission check for push.

chrome/browser/services/gcm/gcm_infobar_delegate.h

+// Copyright 2014 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_SERVICES_GCM_GCM_INFOBAR_DELEGATE_H_
+#define CHROME_BROWSER_SERVICES_GCM_GCM_INFOBAR_DELEGATE_H_
+
+#include "chrome/browser/services/gcm/permission_infobar_delegate.h"
+
+class GURL;
+class InfoBarService;
+
+namespace gcm {
+
+// Delegate to allow GCM push messages registration.
+class GCMInfoBarDelegate : public PermissionInfobarDelegate {

[Michael van Ouwerkerk, 2014/06/19 10:16:10]

I'm wondering whether we want to maybe have a PushMessagingInfoBarDelegate (and
friends) that does not mention GCM. It would still have to live in the chrome
layer, but really it is not GCM specific is it?

[Miguel Garcia, 2014/06/19 17:49:28]

I thought about it as well, and in fact renamed the class/file a few times, in
the end I went with this because it's shorter and it's inside the gcm directory
already so it's pretty specific to GCM at this point.

The way I see it push_message_service_impl.cc is where we become gcm specific.
If other embedders need to implement this, that is the layer at which they will
have to add their own push server.

I don't feel very strongly about it, this is the reasoning I did to myself but
if after reading this you still prefer a more generic name (for this and the
permission context I guess?) I can change it.

+ public:
+  virtual ~GCMInfoBarDelegate();
+
+  // Creates a Push Permission infobar and delegate and adds the infobar to
+  // |infobar_service|.  Returns the infobar if it was successfully added.
+  static infobars::InfoBar* Create(InfoBarService* infobar_service,
+                                   PermissionQueueController* controller,
+                                   const PermissionRequestID& id,
+                                   GURL& requesting_frame,
+                                   const std::string& display_languages);
+
+ private:
+  GCMInfoBarDelegate(PermissionQueueController* controller,
+                     const PermissionRequestID& id,
+                     GURL& requesting_frame,
+                     const std::string& display_languages);
+
+  // ConfirmInfoBarDelegate:
+  virtual base::string16 GetMessageText() const OVERRIDE;
+
+  GURL& requesting_frame_;
+  const std::string& display_languages_;
+
+  DISALLOW_COPY_AND_ASSIGN(GCMInfoBarDelegate);
+};
+
+}  // namespace gcm
+#endif  // CHROME_BROWSER_SERVICES_GCM_GCM_INFOBAR_DELEGATE_H_