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

chrome/browser/sync/glue/sync_backend_host_unittest.cc

Index: chrome/browser/sync/glue/sync_backend_host_unittest.cc
diff --git a/chrome/browser/sync/glue/sync_backend_host_unittest.cc b/chrome/browser/sync/glue/sync_backend_host_unittest.cc
index a397531571b1a2f441d2ea0989ca779df4c3fa8e..9893b5f7023255049f85d6a971251073df0f5322 100644
--- a/chrome/browser/sync/glue/sync_backend_host_unittest.cc
+++ b/chrome/browser/sync/glue/sync_backend_host_unittest.cc
@@ -173,10 +173,10 @@ class SyncBackendHostTest : public testing::Test {
     profile_.reset();
     // Pump messages posted by the sync thread (which may end up
     // posting on the IO thread).
-    ui_loop_.RunAllPending();
+    ui_loop_.RunUntilIdle();
     io_thread_.Stop();
     // Pump any messages posted by the IO thread.
-    ui_loop_.RunAllPending();
+    ui_loop_.RunUntilIdle();
   }
 
   // Synchronously initializes the backend.