chrome/browser: Update calls from RunAllPending() to RunUntilIdle().

chrome/browser/chromeos/settings/device_settings_test_helper.cc

Index: chrome/browser/chromeos/settings/device_settings_test_helper.cc
diff --git a/chrome/browser/chromeos/settings/device_settings_test_helper.cc b/chrome/browser/chromeos/settings/device_settings_test_helper.cc
index e47444bb9b75dca8e4ac0ada75d146423c4e80b9..eb6c889bdd4135a46463162b7d2aa8bdc08f447b 100644
--- a/chrome/browser/chromeos/settings/device_settings_test_helper.cc
+++ b/chrome/browser/chromeos/settings/device_settings_test_helper.cc
@@ -22,10 +22,10 @@ void DeviceSettingsTestHelper::FlushLoops() {
   // between the message loop and the blocking pool. 2 iterations are currently
   // sufficient (key loading, signing).
   for (int i = 0; i < 2; ++i) {
-    MessageLoop::current()->RunAllPending();
+    MessageLoop::current()->RunUntilIdle();
     content::BrowserThread::GetBlockingPool()->FlushForTesting();
   }
-  MessageLoop::current()->RunAllPending();
+  MessageLoop::current()->RunUntilIdle();
 }
 
 void DeviceSettingsTestHelper::FlushStore() {