Remove duplication between TestRunner's fields and LayoutDumpFlags struct.

content/shell/renderer/layout_test/blink_test_runner.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 "content/shell/renderer/layout_test/blink_test_runner.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <clocale>
 #include <cmath>
@@ skipping 874 matching lines @@
     CaptureDumpContinued();
     return;
   }
 
   test_runner::LayoutDumpFlags layout_dump_flags =
       interfaces->TestRunner()->GetLayoutDumpFlags();
   layout_dump_flags.dump_line_box_trees =
       base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDumpLineBoxTrees);
 
-  if (!layout_dump_flags.dump_child_frames) {
+  if (!layout_dump_flags.dump_child_frames()) {
     std::string layout_dump = DumpLayout(
         render_view()->GetMainRenderFrame()->GetWebFrame(), layout_dump_flags);
     OnLayoutDumpCompleted(layout_dump);
     return;
   }
 
   Send(
       new ShellViewHostMsg_InitiateLayoutDump(routing_id(), layout_dump_flags));
   // OnLayoutDumpCompleted will be eventually called by an IPC from the browser.
 }
@@ skipping 125 matching lines @@
   get_bluetooth_events_callbacks_.pop_front();
   callback.Run(events);
 }
 
 void BlinkTestRunner::ReportLeakDetectionResult(
     const LeakDetectionResult& report) {
   Send(new ShellViewHostMsg_LeakDetectionDone(routing_id(), report));
 }
 
 }  // namespace content