Replicate LayoutTestRuntimeFlags across secondary window renderers.

content/shell/renderer/layout_test/layout_test_render_thread_observer.cc

 // Copyright (c) 2014 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/layout_test_render_thread_observer.h"
 
 #include "base/command_line.h"
 #include "components/test_runner/test_interfaces.h"
 #include "components/test_runner/web_test_interfaces.h"
+#include "components/test_runner/web_test_runner.h"
 #include "content/common/input/input_event_utils.h"
 #include "content/public/common/content_client.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/test/layouttest_support.h"
+#include "content/shell/common/layout_test/layout_test_messages.h"
 #include "content/shell/common/layout_test/layout_test_switches.h"
 #include "content/shell/common/shell_messages.h"
 #include "content/shell/renderer/layout_test/blink_test_runner.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 #include "v8/include/v8.h"
 
 using blink::WebFrame;
 using blink::WebRuntimeFeatures;
 
@@ skipping 51 matching lines @@
 
 void LayoutTestRenderThreadObserver::OnRenderProcessShutdown() {
   test_interfaces_.reset();
 }
 
 bool LayoutTestRenderThreadObserver::OnControlMessageReceived(
     const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(LayoutTestRenderThreadObserver, message)
     IPC_MESSAGE_HANDLER(ShellViewMsg_SetWebKitSourceDir, OnSetWebKitSourceDir)
+    IPC_MESSAGE_HANDLER(LayoutTestMsg_ReplicateLayoutTestRuntimeFlagsChanges,
+                        OnReplicateLayoutTestRuntimeFlagsChanges)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void LayoutTestRenderThreadObserver::OnSetWebKitSourceDir(
     const base::FilePath& webkit_source_dir) {
   webkit_source_dir_ = webkit_source_dir;
 }
 
+void LayoutTestRenderThreadObserver::OnReplicateLayoutTestRuntimeFlagsChanges(
+    const base::DictionaryValue& changed_layout_test_runtime_flags) {
+  test_interfaces()->TestRunner()->ReplicateLayoutTestRuntimeFlagsChanges(
+      changed_layout_test_runtime_flags);
+}
+
 }  // namespace content