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

content/shell/browser/layout_test/blink_test_controller.h

 // Copyright 2013 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_SHELL_BROWSER_LAYOUT_TEST_BLINK_TEST_CONTROLLER_H_
 #define CONTENT_SHELL_BROWSER_LAYOUT_TEST_BLINK_TEST_CONTROLLER_H_
 
 #include <map>
 #include <memory>
 #include <ostream>
@@ skipping 27 matching lines @@
 
 namespace content {
 
 class LayoutTestBluetoothChooserFactory;
 class LayoutTestDevToolsBindings;
 class RenderFrameHost;
 class RenderProcessHost;
 class Shell;
 
 #if defined(OS_ANDROID)
-// Android uses a nested message loop for running layout tests because the
+// Android uses a nested run loop for running layout tests because the
 // default message loop, provided by the system, does not offer a blocking
 // Run() method. The loop itself, implemented as NestedMessagePumpAndroid,
 // uses a base::WaitableEvent allowing it to sleep until more events arrive.
 class ScopedAllowWaitForAndroidLayoutTests {
  private:
   base::ThreadRestrictions::ScopedAllowWait wait;
 };
 #endif
 
 class BlinkTestResultPrinter {
@@ skipping 238 matching lines @@
   // waiting on the UI thread while layout tests are being ran.
   ScopedAllowWaitForAndroidLayoutTests reduced_restrictions_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(BlinkTestController);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_BLINK_TEST_CONTROLLER_H_