Remove iOS ifdefs in src/content.

content/browser/browser_process_sub_thread.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 "content/browser/browser_process_sub_thread.h"
 
 #include "base/debug/leak_tracker.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/trace_event/memory_dump_manager.h"
 #include "build/build_config.h"
@@ skipping 48 matching lines @@
 #endif
 }
 
 void BrowserProcessSubThread::IOThreadPreCleanUp() {
   // Kill all things that might be holding onto
   // net::URLRequest/net::URLRequestContexts.
 
   // Destroy all URLRequests started by URLFetchers.
   net::URLFetcher::CancelAll();
 
-#if !defined(OS_IOS)
   // If any child processes are still running, terminate them and
   // and delete the BrowserChildProcessHost instances to release whatever
   // IO thread only resources they are referencing.
   BrowserChildProcessHostImpl::TerminateAll();
-#endif  // !defined(OS_IOS)
 
   // Unregister GpuMemoryBuffer dump provider before IO thread is shut down.
   base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider(
       BrowserGpuMemoryBufferManager::current());
 }
 
 }  // namespace content