Adding MimeHandlerView.

extensions/browser/extension_message_filter.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 EXTENSIONS_BROWSER_EXTENSION_MESSAGE_FILTER_H_
 #define EXTENSIONS_BROWSER_EXTENSION_MESSAGE_FILTER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "url/gurl.h"
 
 struct ExtensionHostMsg_Request_Params;
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class BrowserContext;
+class WebContents;
 }
 
 namespace extensions {
 
 class InfoMap;
 
 // This class filters out incoming extension-specific IPC messages from the
 // renderer process. It is created on the UI thread. Messages may be handled on
 // the IO thread or the UI thread.
 class ExtensionMessageFilter : public content::BrowserMessageFilter {
@@ skipping 22 matching lines @@
                               const std::string& event_name);
   void OnExtensionRemoveListener(const std::string& extension_id,
                                  const GURL& listener_url,
                                  const std::string& event_name);
   void OnExtensionAddLazyListener(const std::string& extension_id,
                                   const std::string& event_name);
   void OnExtensionAttachGuest(int routing_id,
                               int element_instance_id,
                               int guest_instance_id,
                               const base::DictionaryValue& attach_params);
+  void OnExtensionCreateMimeHandlerViewGuest(int render_frame_id,
+                                             const std::string& url,
+                                             const std::string& mime_type,
+                                             int element_instance_id);
   void OnExtensionRemoveLazyListener(const std::string& extension_id,
                                      const std::string& event_name);
   void OnExtensionAddFilteredListener(const std::string& extension_id,
                                       const std::string& event_name,
                                       const base::DictionaryValue& filter,
                                       bool lazy);
   void OnExtensionRemoveFilteredListener(const std::string& extension_id,
                                          const std::string& event_name,
                                          const base::DictionaryValue& filter,
                                          bool lazy);
   void OnExtensionShouldSuspendAck(const std::string& extension_id,
                                    int sequence_id);
   void OnExtensionSuspendAck(const std::string& extension_id);
   void OnExtensionTransferBlobsAck(const std::vector<std::string>& blob_uuids);
 
   // Message handlers on the IO thread.
   void OnExtensionGenerateUniqueID(int* unique_id);
   void OnExtensionResumeRequests(int route_id);
   void OnExtensionRequestForIOThread(
       int routing_id,
       const ExtensionHostMsg_Request_Params& params);
 
+  // Runs on UI thread.
+  void MimeHandlerViewGuestCreatedCallback(int element_instance_id,
+                                           int embedder_render_process_id,
+                                           int embedder_routing_id,
+                                           const std::string& src,
+                                           content::WebContents* web_contents);
+
   const int render_process_id_;
 
   // Should only be accessed on the UI thread.
   content::BrowserContext* browser_context_;
 
   scoped_refptr<extensions::InfoMap> extension_info_map_;
 
   // Weak pointers produced by this factory are bound to the IO thread.
   base::WeakPtrFactory<ExtensionMessageFilter> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionMessageFilter);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_MESSAGE_FILTER_H_