Adding MimeHandlerView.

chrome/browser/guest_view/mime_handler_view/mime_handler_view_guest.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_GUEST_VIEW_MIME_HANDLER_VIEW_MIME_HANDLER_VIEW_GUEST_H_
+#define CHROME_BROWSER_GUEST_VIEW_MIME_HANDLER_VIEW_MIME_HANDLER_VIEW_GUEST_H_
+
+#include "extensions/browser/guest_view/guest_view.h"
+
+class MimeHandlerViewGuest :
+    public extensions::GuestView<MimeHandlerViewGuest> {
+ public:
+  static GuestViewBase* Create(content::BrowserContext* browser_context,
+                               int guest_instance_id);
+
+  static const char Type[];
+
+  // GuestViewBase implementation.
+  virtual const char* GetAPINamespace() const OVERRIDE;
+  virtual int GetTaskPrefix() const OVERRIDE;
+  virtual void CreateWebContents(
+      const std::string& embedder_extension_id,
+      int embedder_render_process_id,
+      const base::DictionaryValue& create_params,
+      const WebContentsCreatedCallback& callback) OVERRIDE;
+  virtual void DidAttachToEmbedder() OVERRIDE;
+  virtual void DidInitialize() OVERRIDE;
+
+ private:
+  MimeHandlerViewGuest(content::BrowserContext* browser_context,
+                       int guest_instance_id);
+  virtual ~MimeHandlerViewGuest();
+
+  void AttachWebContentsHelpers(content::WebContents* contents);
+
+  DISALLOW_COPY_AND_ASSIGN(MimeHandlerViewGuest);
+};
+
+#endif  // CHROME_BROWSER_GUEST_VIEW_MIME_HANDLER_VIEW_MIME_HANDLER_VIEW_GUEST_H_