Chrome side to implement WebMimeRegistry.

chrome/renderer/renderer_webkitclient_impl.h

+// Copyright (c) 2009 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_RENDERER_RENDERER_WEBKIT_CLIENT_IMPL_H_
+#define CHROME_RENDERER_RENDERER_WEBKIT_CLIENT_IMPL_H_
+
+#include "webkit/glue/simple_webmimeregistry_impl.h"
+#include "webkit/glue/webkitclient_impl.h"
+
+class RendererWebKitClientImpl : public webkit_glue::WebKitClientImpl {
+ public:
+  // WebKitClient methods:
+  virtual WebKit::WebMimeRegistry* mimeRegistry() {
+    return &mime_registry_;
+  }
+
+ private:
+  class MimeRegistry : public webkit_glue::SimpleWebMimeRegistryImpl {
+   public:
+    virtual WebKit::WebString mimeTypeForExtension(const WebKit::WebString&);
+    virtual WebKit::WebString mimeTypeFromFile(const WebKit::WebString&);
+    virtual WebKit::WebString preferredExtensionForMIMEType(
+        const WebKit::WebString&);
+  };
+
+  MimeRegistry mime_registry_;
+};
+
+#endif  // CHROME_RENDERER_WEBKIT_CLIENT_IMPL_H_