Remove IOThread::message_loop().

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
diff --git a/chrome/browser/browser_process_impl.cc b/chrome/browser/browser_process_impl.cc
index 60bb8a41e9bbe3fe8118913ea95cc1c696f1bb0c..57b2a6faa62c9238a7c42238c71cf82745c4546e 100644
--- a/chrome/browser/browser_process_impl.cc
+++ b/chrome/browser/browser_process_impl.cc
@@ -331,7 +331,8 @@ unsigned int BrowserProcessImpl::ReleaseModule() {
     // of it on shutdown for valid reasons.
     base::ThreadRestrictions::SetIOAllowed(true);
     CHECK(!BrowserList::GetLastActive());
-    io_thread()->message_loop()->PostTask(
+    BrowserThread::PostTask(
+        BrowserThread::IO,
         FROM_HERE,
         base::IgnoreReturn<bool>(
             base::Bind(&base::ThreadRestrictions::SetIOAllowed, true)));
@@ -423,16 +424,6 @@ base::Thread* BrowserProcessImpl::db_thread() {
   return BrowserThread::UnsafeGetBrowserThread(BrowserThread::DB);
 }
 
-base::Thread* BrowserProcessImpl::process_launcher_thread() {
-  DCHECK(CalledOnValidThread());
-  return BrowserThread::UnsafeGetBrowserThread(BrowserThread::PROCESS_LAUNCHER);
-}
-
-base::Thread* BrowserProcessImpl::cache_thread() {
-  DCHECK(CalledOnValidThread());
-  return BrowserThread::UnsafeGetBrowserThread(BrowserThread::CACHE);
-}
-
 WatchDogThread* BrowserProcessImpl::watchdog_thread() {
   DCHECK(CalledOnValidThread());
   if (!created_watchdog_thread_)