Implement a poor man's PostAfterStartupTask() function.

content/browser/browser_thread_impl.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_thread_impl.h"
 
 #include <string>
 
 #include "base/atomicops.h"
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/thread_restrictions.h"
 #include "content/public/browser/browser_thread_delegate.h"
+#include "content/public/browser/content_browser_client.h"
+#include "content/public/common/content_client.h"

[jam, 2015/03/10 23:04:34]

nit: by convention we only include content_browser_client.h, since it includes
content_client.h (same for all the other content_foo_client.h)

[michaeln, 2015/03/20 00:21:28]

Done.

 #include "net/disk_cache/simple/simple_backend_impl.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/jni_android.h"
 #endif
 
 namespace content {
 
 namespace {
 
@@ skipping 330 matching lines @@
 // static
 bool BrowserThread::PostBlockingPoolSequencedTask(
     const std::string& sequence_token_name,
     const tracked_objects::Location& from_here,
     const base::Closure& task) {
   return g_globals.Get().blocking_pool->PostNamedSequencedWorkerTask(
       sequence_token_name, from_here, task);
 }
 
 // static
+void BrowserThread::PostAfterStartupTask(
+      const tracked_objects::Location& from_here,
+      const scoped_refptr<base::TaskRunner>& task_runner,
+      const base::Closure& task) {
+  GetContentClient()->browser()->PostAfterStartupTask(
+      from_here, task_runner, task);
+}
+
+// static
 base::SequencedWorkerPool* BrowserThread::GetBlockingPool() {
   return g_globals.Get().blocking_pool.get();
 }
 
 // static
 bool BrowserThread::IsThreadInitialized(ID identifier) {
   if (g_globals == NULL)
     return false;
 
   BrowserThreadGlobals& globals = g_globals.Get();
@@ skipping 152 matching lines @@
   AtomicWord* storage = reinterpret_cast<AtomicWord*>(
       &globals.thread_delegates[identifier]);
   AtomicWord old_pointer = base::subtle::NoBarrier_AtomicExchange(
       storage, reinterpret_cast<AtomicWord>(delegate));
 
   // This catches registration when previously registered.
   DCHECK(!delegate || !old_pointer);
 }
 
 }  // namespace content