Break dependencies preventing move of test_server down to net.

chrome/browser/google_apis/test_server/http_server.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 CHROME_BROWSER_GOOGLE_APIS_TEST_SERVER_HTTP_SERVER_H_
 #define CHROME_BROWSER_GOOGLE_APIS_TEST_SERVER_HTTP_SERVER_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "base/threading/thread_checker.h"
 #include "googleurl/src/gurl.h"
 #include "net/socket/tcp_listen_socket.h"
 
 namespace google_apis {
 namespace test_server {
 
 class HttpConnection;
 class HttpResponse;
 struct HttpRequest;
 
 // This class is required to be able to have composition instead of inheritance,
-class HttpListenSocket: public net::TCPListenSocket {
+class HttpListenSocket : public net::TCPListenSocket {
  public:
   HttpListenSocket(const SocketDescriptor socket_descriptor,
                    net::StreamListenSocket::Delegate* delegate);
   virtual void Listen();
 
  private:
   virtual ~HttpListenSocket();
+
+  base::ThreadChecker thread_checker_;
 };
 
 // Class providing an HTTP server for testing purpose. This is a basic server
 // providing only an essential subset of HTTP/1.1 protocol. Especially,
 // it assumes that the request syntax is correct. It *does not* support
 // a Chunked Transfer Encoding.
 //
 // The common use case is below:
 //
+// base::Thread io_thread_;
 // scoped_ptr<HttpServer> test_server_;
 //
 // void SetUp() {
-//   test_server_.reset(new HttpServer());
-//   DCHECK(test_server_.InitializeAndWaitUntilReady());
+//   base::Thread::Options thread_options;
+//   thread_options.message_loop_type = MessageLoop::TYPE_IO;
+//   ASSERT_TRUE(io_thread_.StartWithOptions(thread_options));
+//
+//   test_server_.reset(new HttpServer(io_thread_.message_loop_proxy()));
+//   ASSERT_TRUE(test_server_.InitializeAndWaitUntilReady());
 //   test_server_->RegisterRequestHandler(
 //       base::Bind(&FooTest::HandleRequest, base::Unretained(this)));
 // }
 //
 // scoped_ptr<HttpResponse> HandleRequest(const HttpRequest& request) {
 //   GURL absolute_url = test_server_->GetURL(request.relative_url);
 //   if (absolute_url.path() != "/test")
 //     return scoped_ptr<HttpResponse>();
 //
 //   scoped_ptr<HttpResponse> http_response(new HttpResponse());
 //   http_response->set_code(test_server::SUCCESS);
 //   http_response->set_content("hello");
 //   http_response->set_content_type("text/plain");
 //   return http_response.Pass();
 // }
 //
 class HttpServer : public net::StreamListenSocket::Delegate {
  public:
   typedef base::Callback<scoped_ptr<HttpResponse>(const HttpRequest& request)>
       HandleRequestCallback;
 
-  // Creates a http test server. InitializeAndWaitUntilReady() must be called
-  // to start the server.
-  HttpServer();
+  // Creates a http test server. |io_thread| is a task runner
+  // with IO message loop, used as a backend thread.
+  // InitializeAndWaitUntilReady() must be called to start the server.
+  explicit HttpServer(
+      const scoped_refptr<base::SingleThreadTaskRunner>& io_thread);
   virtual ~HttpServer();
 
   // Initializes and waits until the server is ready to accept requests.
-  bool InitializeAndWaitUntilReady();
+  bool InitializeAndWaitUntilReady() WARN_UNUSED_RESULT;
 
   // Shuts down the http server and waits until the shutdown is complete.
-  void ShutdownAndWaitUntilComplete();
+  bool ShutdownAndWaitUntilComplete() WARN_UNUSED_RESULT;
 
   // Checks if the server is started.
   bool Started() const {
     return listen_socket_.get() != NULL;
   }
 
   // Returns the base URL to the server, which looks like
   // http://127.0.0.1:<port>/, where <port> is the actual port number used by
   // the server.
   const GURL& base_url() const { return base_url_; }
@@ skipping 27 matching lines @@
   // net::StreamListenSocket::Delegate overrides:
   virtual void DidAccept(net::StreamListenSocket* server,
                          net::StreamListenSocket* connection) OVERRIDE;
   virtual void DidRead(net::StreamListenSocket* connection,
                        const char* data,
                        int length) OVERRIDE;
   virtual void DidClose(net::StreamListenSocket* connection) OVERRIDE;
 
   HttpConnection* FindConnection(net::StreamListenSocket* socket);
 
+  scoped_refptr<base::SingleThreadTaskRunner> io_thread_;
+
   scoped_refptr<HttpListenSocket> listen_socket_;
   int port_;
   GURL base_url_;
 
   // Owns the HttpConnection objects.
   std::map<net::StreamListenSocket*, HttpConnection*> connections_;
 
   // Vector of registered request handlers.
   std::vector<HandleRequestCallback> request_handlers_;
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<HttpServer> weak_factory_;
 
+  base::ThreadChecker thread_checker_;
+
   DISALLOW_COPY_AND_ASSIGN(HttpServer);
 };
 
 }  // namespace test_servers
 }  // namespace google_apis
 
 #endif  // CHROME_BROWSER_GOOGLE_APIS_TEST_SERVER_HTTP_SERVER_H_