Remove calls to deprecated MessageLoop methods in chrome.

chrome/browser/extensions/api/top_sites/top_sites_apitest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 
+#include "base/run_loop.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "chrome/browser/extensions/api/top_sites/top_sites_api.h"
 #include "chrome/browser/extensions/extension_function_test_utils.h"
 #include "chrome/browser/history/top_sites_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "components/history/core/browser/top_sites.h"
 
@@ skipping 18 matching lines @@
         top_sites->GetPrepopulatedPages().size();
 
     // This may return async or sync. If sync, top_sites_inited_ will be true
     // before we get to the conditional below. Otherwise, we'll run a nested
     // message loop until the async callback.
     top_sites->GetMostVisitedURLs(
         base::Bind(&TopSitesExtensionTest::OnTopSitesAvailable, this), false);
 
     if (!top_sites_inited_) {
       waiting_ = true;
-      base::MessageLoop::current()->Run();
+      base::RunLoop().Run();
     }
 
     // By this point, we know topsites has loaded. We can run the tests now.
   }
 
   size_t top_sites_prepopulated_pages_size() const {
     return top_sites_prepopulated_pages_size_;
   }
 
  private:
@@ skipping 19 matching lines @@
   get_top_sites_function->set_has_callback(true);
 
   std::unique_ptr<base::Value> result(utils::RunFunctionAndReturnSingleResult(
       get_top_sites_function.get(), "[]", browser()));
   base::ListValue* list;
   ASSERT_TRUE(result->GetAsList(&list));
   EXPECT_GE(list->GetSize(), top_sites_prepopulated_pages_size());
 }
 
 }  // namespace extensions