Explicitly initialize secondary renderers for layout tests.

content/shell/renderer/layout_test/layout_test_render_frame_observer.cc

 // 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.
 
 #include "content/shell/renderer/layout_test/layout_test_render_frame_observer.h"
 
 #include <string>
 
 #include "components/test_runner/web_test_interfaces.h"
 #include "components/test_runner/web_test_runner.h"
@@ skipping 20 matching lines @@
     const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(LayoutTestRenderFrameObserver, message)
     IPC_MESSAGE_HANDLER(ShellViewMsg_LayoutDumpRequest, OnLayoutDumpRequest)
     IPC_MESSAGE_HANDLER(ShellViewMsg_ReplicateLayoutTestRuntimeFlagsChanges,
                         OnReplicateLayoutTestRuntimeFlagsChanges)
     IPC_MESSAGE_HANDLER(ShellViewMsg_ReplicateTestConfiguration,
                         OnReplicateTestConfiguration)
     IPC_MESSAGE_HANDLER(ShellViewMsg_SetTestConfiguration,
                         OnSetTestConfiguration)
+    IPC_MESSAGE_HANDLER(ShellViewMsg_SetupSecondaryRenderer,
+                        OnSetupSecondaryRenderer)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void LayoutTestRenderFrameObserver::OnLayoutDumpRequest() {
   std::string dump =
       LayoutTestRenderThreadObserver::GetInstance()
           ->test_interfaces()
           ->TestRunner()
           ->DumpLayout(render_frame()->GetWebFrame());
   Send(new ShellViewHostMsg_LayoutDumpResponse(routing_id(), dump));
 }
 
 void LayoutTestRenderFrameObserver::OnReplicateLayoutTestRuntimeFlagsChanges(
     const base::DictionaryValue& changed_layout_test_runtime_flags) {
   LayoutTestRenderThreadObserver::GetInstance()
       ->test_interfaces()
       ->TestRunner()
       ->ReplicateLayoutTestRuntimeFlagsChanges(
           changed_layout_test_runtime_flags);
 }
 
 void LayoutTestRenderFrameObserver::OnReplicateTestConfiguration(
     const ShellTestConfiguration& test_config,
     const base::DictionaryValue&
         accumulated_layout_test_runtime_flags_changes) {
-  LayoutTestRenderThreadObserver::GetInstance()
-      ->main_test_runner()
+  BlinkTestRunner::Get(render_frame()->GetRenderView())
       ->OnReplicateTestConfiguration(test_config);
 
   OnReplicateLayoutTestRuntimeFlagsChanges(
       accumulated_layout_test_runtime_flags_changes);
 }
 
 void LayoutTestRenderFrameObserver::OnSetTestConfiguration(
     const ShellTestConfiguration& test_config) {
-  LayoutTestRenderThreadObserver::GetInstance()
-      ->main_test_runner()
+  BlinkTestRunner::Get(render_frame()->GetRenderView())
       ->OnSetTestConfiguration(test_config);
 }
 
+void LayoutTestRenderFrameObserver::OnSetupSecondaryRenderer() {
+  BlinkTestRunner::Get(render_frame()->GetRenderView())
+      ->OnSetupSecondaryRenderer();
+}
+
 }  // namespace content