Move Mime type handling to streamsPrivate API, so that it works on Desktop Chrome.

chrome/browser/extensions/api/streams_private/streams_private_api.cc

+// Copyright (c) 2012 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.
+
+#include "chrome/browser/extensions/api/streams_private/streams_private_api.h"
+
+#include "base/json/json_writer.h"
+#include "base/lazy_instance.h"
+#include "base/stl_util.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/extensions/event_router.h"
+#include "chrome/browser/extensions/extension_function_registry.h"
+#include "chrome/browser/extensions/extension_input_module_constants.h"
+#include "chrome/browser/extensions/extension_system.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/extensions/mime_types_handler.h"
+
+namespace keys = extension_input_module_constants;
+
+namespace events {
+
+const char kOnExecuteMimeTypeHandler[] =
+    "streamsPrivate.onExecuteMimeTypeHandler";
+
+}  // namespace events
+
+namespace extensions {
+
+StreamsPrivateAPI::StreamsPrivateAPI(Profile* profile)
+    : profile_(profile) {
+  (new MimeTypesHandlerParser)->Register();
+}
+
+StreamsPrivateAPI::~StreamsPrivateAPI() {
+}
+
+static base::LazyInstance<ProfileKeyedAPIFactory<StreamsPrivateAPI> >
+    g_factory = LAZY_INSTANCE_INITIALIZER;
+
+// static
+ProfileKeyedAPIFactory<StreamsPrivateAPI>*
+    StreamsPrivateAPI::GetFactoryInstance() {
+  return &g_factory.Get();
+}
+
+}  // namespace extensions