[ProtocolHandlers] Add a permission bubble client for RPH requests.

chrome/browser/custom_handlers/register_protocol_handler_permission_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_CUSTOM_HANDLERS_REGISTER_PROTOCOL_HANDLER_PERMISSION_DELEGATE_H_
+#define CHROME_BROWSER_CUSTOM_HANDLERS_REGISTER_PROTOCOL_HANDLER_PERMISSION_DELEGATE_H_
+
+#include "chrome/browser/ui/website_settings/permission_bubble_delegate.h"
+#include "chrome/common/custom_handlers/protocol_handler.h"
+
+class ProtocolHandlerRegistry;
+
+class RegisterProtocolHandlerPermissionDelegate

[koz (OOO until 15th September), 2014/02/06 03:03:26]

Could you add a class comment describing when this bubble gets displayed?

Also, is this class referred to anywhere? I can't see any references to it in
the rest of this CL.

[Greg Billock, 2014/02/06 22:23:49]

Yeah, I didn't get the actual call site included. Added this comment and fixed
that.

+    : public PermissionBubbleDelegate {
+ public:
+  RegisterProtocolHandlerPermissionDelegate(
+      ProtocolHandlerRegistry* registry,
+      const ProtocolHandler& handler);
+  virtual ~RegisterProtocolHandlerPermissionDelegate();
+
+  // PermissionBubbleDelegate:
+  virtual base::string16 GetMessageText() const OVERRIDE;
+  virtual base::string16 GetMessageTextFragment() const OVERRIDE;
+  virtual base::string16 GetAlternateAcceptButtonText() const OVERRIDE;
+  virtual base::string16 GetAlternateDenyButtonText() const OVERRIDE;
+  virtual void PermissionGranted() OVERRIDE;
+  virtual void PermissionDenied() OVERRIDE;
+  virtual void Cancelled() OVERRIDE;
+  virtual void RequestFinished() OVERRIDE;
+
+ private:
+  ProtocolHandlerRegistry* registry_;
+  ProtocolHandler handler_;
+
+  DISALLOW_COPY_AND_ASSIGN(RegisterProtocolHandlerPermissionDelegate);
+};
+
+#endif  // CHROME_BROWSER_CUSTOM_HANDLERS_REGISTER_PROTOCOL_HANDLER_PERMISSION_DELEGATE_H_