Fix the failed cases in URLFetcherFileTest on Android.

net/test/remote_test_server.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 "net/test/remote_test_server.h"
 
 #include <vector>
 
 #include "base/base_paths.h"
 #include "base/file_path.h"
@@ skipping 125 matching lines @@
 bool RemoteTestServer::Stop() {
   if (!spawner_communicator_.get())
     return true;
   CleanUpWhenStoppingServer();
   bool stopped = spawner_communicator_->StopServer();
   // Explicitly reset |spawner_communicator_| to avoid reusing the stopped one.
   spawner_communicator_.reset(NULL);
   return stopped;
 }
 
+// On Android, the document root in the device is not the same as the document
+// root in the host machine where the test server is launched. So prepend
+// DIR_SOURCE_ROOT here to get the actual path of document root on the Android
+// device.
+FilePath RemoteTestServer::GetDocumentRoot() const {
+  FilePath src_dir;
+  PathService::Get(base::DIR_SOURCE_ROOT, &src_dir);
+  return src_dir.Append(document_root());
+}
+
 bool RemoteTestServer::Init(const FilePath& document_root) {
   if (document_root.IsAbsolute())
     return false;
 
   // Gets ports information used by test server spawner and Python test server.
   int test_server_port = 0;
 
   // Parse file to extract the ports information.
   std::string port_info;
   if (!file_util::ReadFileToString(GetTestServerPortInfoFile(),
@@ skipping 22 matching lines @@
 
   SetResourcePath(document_root, FilePath().AppendASCII("net")
                                            .AppendASCII("data")
                                            .AppendASCII("ssl")
                                            .AppendASCII("certificates"));
   return true;
 }
 
 }  // namespace net