Componentize component_updater: Move URLRequestPrepackagedInterceptor from content/ to net/

net/url_request/test_url_request_interceptor.h

+// 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.
+
+#ifndef NET_URL_REQUEST_TEST_URL_REQUEST_INTERCEPTOR_H_
+#define NET_URL_REQUEST_TEST_URL_REQUEST_INTERCEPTOR_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/memory/ref_counted.h"
+
+class GURL;
+
+namespace base {
+class FilePath;
+class TaskRunner;
+}
+
+namespace net {
+
+// Intercepts HTTP requests and gives pre-defined responses to specified URLs.
+// The pre-defined responses are loaded from files on disk.  The interception
+// occurs while the TestURLRequestInterceptor is alive. This class may be
+// instantiated on any thread.
+class TestURLRequestInterceptor {
+ public:
+  // Registers an interceptor for URLs using |scheme| and |hostname|. URLs
+  // passed to "SetResponse" are required to use |scheme| and |hostname|.
+  // |network_task_runner| is the task runner used for network activity
+  // (e.g. where URL requests are processed).
+  // |worker_task_runner| will be used to read the files specified by
+  // either SetResponse() or SetResponseIgnoreQuery() asynchronously. It
+  // must be a task runner allowed to perform disk IO.
+  TestURLRequestInterceptor(
+      const std::string& scheme,
+      const std::string& hostname,
+      const scoped_refptr<base::TaskRunner>& network_task_runner,
+      const scoped_refptr<base::TaskRunner>& worker_task_runner);
+  virtual ~TestURLRequestInterceptor();
+
+  // When requests for |url| arrive, respond with the contents of |path|. The
+  // hostname and scheme of |url| must match the corresponding parameters
+  // passed as constructor arguments.
+  void SetResponse(const GURL& url, const base::FilePath& path);
+
+  // Identical to SetResponse, except that query parameters are ignored on
+  // incoming URLs when comparing against |url|.
+  void SetResponseIgnoreQuery(const GURL& url, const base::FilePath& path);
+
+  // Returns how many requests have been issued that have a stored reply.
+  int GetHitCount();
+
+ private:
+  class Delegate;
+
+  const std::string scheme_;
+  const std::string hostname_;
+
+  scoped_refptr<base::TaskRunner> network_task_runner_;
+
+  // After creation, |delegate_| lives on the thread of the
+  // |network_task_runner_|, and a task to delete it is posted from
+  // ~TestURLRequestInterceptor().
+  Delegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestURLRequestInterceptor);
+};
+
+// Specialization of TestURLRequestInterceptor where scheme is "http" and
+// hostname is "localhost".
+class LocalHostTestURLRequestInterceptor : public TestURLRequestInterceptor {
+ public:
+  LocalHostTestURLRequestInterceptor(
+      const scoped_refptr<base::TaskRunner>& network_task_runner,
+      const scoped_refptr<base::TaskRunner>& worker_task_runner);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(LocalHostTestURLRequestInterceptor);
+};
+
+}  // namespace net
+
+#endif  // NET_URL_REQUEST_TEST_URL_REQUEST_INTERCEPTOR_H_