Remove all remaining traces of MessageLoopProxy.

components/nacl/browser/pnacl_translation_cache.cc

Index: components/nacl/browser/pnacl_translation_cache.cc
diff --git a/components/nacl/browser/pnacl_translation_cache.cc b/components/nacl/browser/pnacl_translation_cache.cc
index 29cd824673586b92a92f72b5f027f9abd7e063d3..a183d59651d69fc6015d85bcb3f93a66291456fe 100644
--- a/components/nacl/browser/pnacl_translation_cache.cc
+++ b/components/nacl/browser/pnacl_translation_cache.cc
@@ -338,12 +338,9 @@ int PnaclTranslationCache::Init(net::CacheType cache_type,
                                 int cache_size,
                                 const CompletionCallback& callback) {
   int rv = disk_cache::CreateCacheBackend(
-      cache_type,
-      net::CACHE_BACKEND_DEFAULT,
-      cache_dir,
-      cache_size,
+      cache_type, net::CACHE_BACKEND_DEFAULT, cache_dir, cache_size,
       true /* force_initialize */,
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE).get(),
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::CACHE).get(),
       NULL, /* dummy net log */
       &disk_cache_,
       base::Bind(&PnaclTranslationCache::OnCreateBackendComplete, AsWeakPtr()));