Make startup_tests build and run on Linux (except reference tests).

chrome/test/automation/automation_proxy.cc

 // Copyright (c) 2006-2008 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 <sstream>
 
 #include "chrome/test/automation/automation_proxy.h"
 
 #include "base/basictypes.h"
 #include "base/logging.h"
@@ skipping 384 matching lines @@
 
   if (!SendWithTimeout(new AutomationMsg_LastActiveBrowserWindow(
       0, &handle), command_execution_timeout_ms(), NULL)) {
     DLOG(ERROR) << "GetLastActiveBrowserWindow did not complete in a timely fashion";
     return NULL;
   }
 
   return new BrowserProxy(this, tracker_.get(), handle);
 }
 
+#if defined(OS_POSIX)
+base::file_handle_mapping_vector AutomationProxy::fds_to_map() const {
+  base::file_handle_mapping_vector map;
+  int src_fd = -1, dest_fd = -1;
+  channel_->GetClientFileDescriptorMapping(&src_fd, &dest_fd);
+  if (src_fd > -1)
+    map.push_back(std::make_pair(src_fd, dest_fd));
+  return map;
+}
+#endif  // defined(OS_POSIX)
+
 bool AutomationProxy::Send(IPC::Message* message) {
   return SendWithTimeout(message, base::kNoTimeout, NULL);
 }
 
 bool AutomationProxy::SendWithTimeout(IPC::Message* message, int timeout,
                                       bool* is_timeout) {
   if (is_timeout)
     *is_timeout = false;
 
   if (channel_.get()) {
@@ skipping 36 matching lines @@
                                                &handle));
   if (!succeeded) {
     return NULL;
   }
 
   DCHECK(IsWindow(*external_tab_container));
 
   return new TabProxy(this, tracker_.get(), handle);
 }
 #endif  // defined(OS_WIN)