Replicate LayoutTestRuntimeFlags across secondary window renderers.

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>
@@ skipping 511 matching lines @@
   setlocale(LC_ALL, locale.c_str());
 }
 
 void BlinkTestRunner::OnLayoutTestRuntimeFlagsChanged(
     const base::DictionaryValue& changed_values) {
   // Ignore changes that happen before we got the initial, accumulated
   // layout flag changes in ShellViewMsg_ReplicateTestConfiguration.
   if (!is_main_window_)
     return;
 
-  // Message needs to be send via a local frame to eventually reach
-  // WebContentsObserver via OnMessage(..., RenderFrameHost*) overload - this
-  // lets BlinkTestController figure out the originator of the message.
-  RenderFrame* local_frame = nullptr;
-  for (WebFrame* frame = render_view()->GetWebView()->mainFrame(); frame;
-       frame = frame->traverseNext(false)) {
-    if (frame->isWebLocalFrame()) {
-      local_frame = RenderFrame::FromWebFrame(frame);
-      break;
-    }
-  }
-  DCHECK(local_frame);
-  Send(new ShellViewHostMsg_LayoutTestRuntimeFlagsChanged(
-      local_frame->GetRoutingID(), changed_values));
+  RenderThread::Get()->Send(
+      new LayoutTestHostMsg_LayoutTestRuntimeFlagsChanged(changed_values));

[Łukasz Anforowicz, 2016/04/15 20:17:51]

dcheng@ was (rightfully) unhappy about the shape of the old code.  Hopefully the
new code makes everyone happier :-)

 }
 
 void BlinkTestRunner::TestFinished() {
   if (!is_main_window_ || !render_view()->GetMainRenderFrame()) {
     Send(new ShellViewHostMsg_TestFinishedInSecondaryRenderer(routing_id()));
     return;
   }
   test_runner::WebTestInterfaces* interfaces =
       LayoutTestRenderProcessObserver::GetInstance()->test_interfaces();
   interfaces->SetTestIsRunning(false);
@@ skipping 416 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