ipc_channel: warn if someone forgets to check the result of Connect()

ipc/ipc_send_fds_test.cc

 // Copyright (c) 2009 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 "build/build_config.h"
 
 #include "ipc/ipc_tests.h"
 
 #if defined(OS_MACOSX)
 extern "C" {
@@ skipping 92 matching lines @@
   EXPECT_TRUE(base::WaitForSingleProcess(process_handle, 5000));
 }
 
 int TestDescriptorClient(ino_t expected_inode_num) {
   MessageLoopForIO main_message_loop;
   MyChannelDescriptorListener listener(expected_inode_num);
 
   // Setup IPC channel.
   IPC::Channel chan(kTestClientChannel, IPC::Channel::MODE_CLIENT,
                     &listener);
-  chan.Connect();
+  ASSERT_TRUE(chan.Connect());
   MessageLoop::current()->Run();
 
   return 0;
 }
 
 }  // namespace
 
 // ---------------------------------------------------------------------------
 #if defined(OS_MACOSX)
 // TODO(port): Make this test cross-platform.
@@ skipping 58 matching lines @@
   IPC::Channel chan(kTestClientChannel, IPC::Channel::MODE_SERVER,
                     &listener);
   chan.Connect();
 
   base::ProcessHandle process_handle = SpawnChild(TEST_DESCRIPTOR_CLIENT,
                                                   &chan);
   TestDescriptorServer(chan, process_handle);
 }
 
 #endif  // defined(OS_POSIX)