Switch a bunch of remaining filters to derive from BrowserMessageFilters so t...

chrome/browser/mime_registry_message_filter.h

Index: chrome/browser/mime_registry_message_filter.h
===================================================================
--- chrome/browser/mime_registry_message_filter.h	(revision 68877)
+++ chrome/browser/mime_registry_message_filter.h	(working copy)
@@ -2,36 +2,30 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_MIME_REGISTRY_DISPATCHER_H_
-#define CHROME_BROWSER_MIME_REGISTRY_DISPATCHER_H_
+#ifndef CHROME_BROWSER_MIME_REGISTRY_MESSAGE_FILTER_H_
+#define CHROME_BROWSER_MIME_REGISTRY_MESSAGE_FILTER_H_
 
 #include "base/file_path.h"
-#include "base/ref_counted.h"
-#include "ipc/ipc_message.h"
+#include "chrome/browser/browser_message_filter.h"
 
-class MimeRegistryDispatcher
-    : public base::RefCountedThreadSafe<MimeRegistryDispatcher> {
+class MimeRegistryMessageFilter : public BrowserMessageFilter {
  public:
-  explicit MimeRegistryDispatcher(IPC::Message::Sender* sender);
-  void Shutdown();
-  bool OnMessageReceived(const IPC::Message& message);
-  void Send(IPC::Message* message);
+  MimeRegistryMessageFilter();
 
+  virtual void OverrideThreadForMessage(const IPC::Message& message,
+                                        BrowserThread::ID* thread);
+  virtual bool OnMessageReceived(const IPC::Message& message,
+                                 bool* message_was_ok);
+
  private:
-  friend class base::RefCountedThreadSafe<MimeRegistryDispatcher>;
-  ~MimeRegistryDispatcher();
+  ~MimeRegistryMessageFilter();
 
   void OnGetMimeTypeFromExtension(const FilePath::StringType& ext,
-                                  IPC::Message* reply);
+                                  std::string* mime_type);
   void OnGetMimeTypeFromFile(const FilePath& file_path,
-                             IPC::Message* reply);
+                             std::string* mime_type);
   void OnGetPreferredExtensionForMimeType(const std::string& mime_type,
-                                          IPC::Message* reply);
-
-  // The sender to be used for sending out IPC messages.
-  IPC::Message::Sender* message_sender_;
-
-  DISALLOW_IMPLICIT_CONSTRUCTORS(MimeRegistryDispatcher);
+                                          FilePath::StringType* extension);
 };
 
-#endif  // CHROME_BROWSER_MIME_REGISTRY_DISPATCHER_H_
+#endif  // CHROME_BROWSER_MIME_REGISTRY_MESSAGE_FILTER_H_