Make IPC::Channel polymorphic

ipc/ipc_test_base.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 "build/build_config.h"
 
 #include "ipc/ipc_test_base.h"
 
 #include "base/command_line.h"
 #include "base/process/kill.h"
@@ skipping 79 matching lines @@
 
 bool IPCTestBase::StartClient() {
   DCHECK(client_process_ == base::kNullProcessHandle);
 
   std::string test_main = test_client_name_ + "TestClientMain";
 
 #if defined(OS_WIN)
   client_process_ = SpawnChild(test_main);
 #elif defined(OS_POSIX)
   base::FileHandleMappingVector fds_to_map;
-  const int ipcfd = channel_.get() ? channel_->GetClientFileDescriptor() :
-                                     channel_proxy_->GetClientFileDescriptor();
+  const int ipcfd = channel_.get()
+      ? channel_->GetClientFileDescriptor()
+      : channel_proxy_->GetClientFileDescriptor();
   if (ipcfd > -1)
     fds_to_map.push_back(std::pair<int, int>(ipcfd,
         kPrimaryIPCChannel + base::GlobalDescriptors::kBaseDescriptor));
   base::LaunchOptions options;
   options.fds_to_remap = &fds_to_map;
   client_process_ = SpawnChildWithOptions(test_main, options);
 #endif
 
   return client_process_ != base::kNullProcessHandle;
 }
 
 bool IPCTestBase::WaitForClientShutdown() {
   DCHECK(client_process_ != base::kNullProcessHandle);
 
   bool rv = base::WaitForSingleProcess(client_process_,
                                        base::TimeDelta::FromSeconds(5));
   base::CloseProcessHandle(client_process_);
   client_process_ = base::kNullProcessHandle;
   return rv;
 }