Explicitly initialize secondary renderers for layout tests.

content/shell/browser/layout_test/secondary_test_window_observer.cc

-// Copyright 2013 The Chromium Authors. All rights reserved.
+// Copyright 2016 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/browser/layout_test/notify_done_forwarder.h"
+#include "content/shell/browser/layout_test/secondary_test_window_observer.h"
 
 #include "content/shell/browser/layout_test/blink_test_controller.h"
 #include "content/shell/common/shell_messages.h"
 
 namespace content {
 
-DEFINE_WEB_CONTENTS_USER_DATA_KEY(NotifyDoneForwarder);
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(SecondaryTestWindowObserver);
 
-NotifyDoneForwarder::NotifyDoneForwarder(WebContents* web_contents)
+SecondaryTestWindowObserver::SecondaryTestWindowObserver(
+    WebContents* web_contents)
     : WebContentsObserver(web_contents) {}
 
-NotifyDoneForwarder::~NotifyDoneForwarder() {}
+SecondaryTestWindowObserver::~SecondaryTestWindowObserver() {}
 
-bool NotifyDoneForwarder::OnMessageReceived(const IPC::Message& message) {
+bool SecondaryTestWindowObserver::OnMessageReceived(
+    const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(NotifyDoneForwarder, message)
+  IPC_BEGIN_MESSAGE_MAP(SecondaryTestWindowObserver, message)
     IPC_MESSAGE_HANDLER(ShellViewHostMsg_TestFinishedInSecondaryRenderer,
                         OnTestFinishedInSecondaryRenderer)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
-void NotifyDoneForwarder::OnTestFinishedInSecondaryRenderer() {
+void SecondaryTestWindowObserver::OnTestFinishedInSecondaryRenderer() {
   BlinkTestController::Get()->TestFinishedInSecondaryRenderer();
 }
 
+void SecondaryTestWindowObserver::RenderFrameCreated(
+    RenderFrameHost* render_frame_host) {
+  DCHECK(!BlinkTestController::Get()->IsMainWindow(
+      WebContents::FromRenderFrameHost(render_frame_host)));
+  BlinkTestController::Get()->HandleNewRenderFrameHost(render_frame_host);
+}
+
+void SecondaryTestWindowObserver::RenderFrameHostChanged(
+    RenderFrameHost* old_host,
+    RenderFrameHost* new_host) {
+  DCHECK(!BlinkTestController::Get()->IsMainWindow(
+      WebContents::FromRenderFrameHost(new_host)));
+  BlinkTestController::Get()->HandleNewRenderFrameHost(new_host);
+}
+
 }  // namespace content