Remove all remaining traces of MessageLoopProxy.

chrome/browser/chromeos/power/freezer_cgroup_process_manager.cc

Index: chrome/browser/chromeos/power/freezer_cgroup_process_manager.cc
diff --git a/chrome/browser/chromeos/power/freezer_cgroup_process_manager.cc b/chrome/browser/chromeos/power/freezer_cgroup_process_manager.cc
index e11155a4a37b5b11b264c53a5d314ab18652a709..af1fd7e8589d6bed83a2ca65360117ec241cde42 100644
--- a/chrome/browser/chromeos/power/freezer_cgroup_process_manager.cc
+++ b/chrome/browser/chromeos/power/freezer_cgroup_process_manager.cc
@@ -32,7 +32,7 @@ class FreezerCgroupProcessManager::FileWorker {
  public:
   // Called on UI thread.
   explicit FileWorker(scoped_refptr<base::SequencedTaskRunner> file_thread)
-      : ui_thread_(content::BrowserThread::GetMessageLoopProxyForThread(
+      : ui_thread_(content::BrowserThread::GetTaskRunnerForThread(
             content::BrowserThread::UI)),
         file_thread_(file_thread) {
     DCHECK(ui_thread_->RunsTasksOnCurrentThread());
@@ -132,7 +132,7 @@ class FreezerCgroupProcessManager::FileWorker {
 };
 
 FreezerCgroupProcessManager::FreezerCgroupProcessManager()
-    : file_thread_(content::BrowserThread::GetMessageLoopProxyForThread(
+    : file_thread_(content::BrowserThread::GetTaskRunnerForThread(
           content::BrowserThread::FILE)),
       file_worker_(new FileWorker(file_thread_)) {
   file_thread_->PostTask(FROM_HERE,