Replace "nested message loop" with "nested run loop" in comments.

content/public/test/browser_test_base.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_TEST_BROWSER_TEST_BASE_H_
 #define CONTENT_PUBLIC_TEST_BROWSER_TEST_BASE_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/threading/thread.h"
@@ skipping 96 matching lines @@
 
   // This function is meant only for classes that directly derive from this
   // class to construct the test server in their constructor. They might need to
   // call this after setting up the paths. Actual test cases should never call
   // this.
   // |test_server_base| is the path, relative to src, to give to the test HTTP
   // server.
   void CreateTestServer(const base::FilePath& test_server_base);
 
   // When the test is running in --single-process mode, runs the given task on
-  // the in-process renderer thread. A nested message loop is run until it
+  // the in-process renderer thread. A nested run loop is run until it
   // returns.
   void PostTaskToInProcessRendererAndWait(const base::Closure& task);
 
   // Call this before SetUp() to cause the test to generate pixel output.
   void EnablePixelOutput();
 
   // Call this before SetUp() to not use GL, but use software compositing
   // instead.
   void UseSoftwareCompositing();
 
@@ skipping 41 matching lines @@
   bool disable_io_checks_;
 
 #if defined(OS_POSIX)
   bool handle_sigterm_;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_BROWSER_TEST_BASE_H_