Always create FrameTreeNodes and RenderFrameHosts for every frame.

content/public/test/mock_render_thread.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/public/test/mock_render_thread.h"
 
 #include "base/message_loop/message_loop_proxy.h"
+#include "content/common/frame_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/renderer/render_process_observer.h"
 #include "ipc/ipc_message_utils.h"
 #include "ipc/ipc_sync_message.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/web/WebScriptController.h"
 
 namespace content {
 
 MockRenderThread::MockRenderThread()
     : routing_id_(0),
       surface_id_(0),
       opener_id_(0),
       new_window_routing_id_(0),
-      new_window_main_frame_routing_id_(0) {
+      new_window_main_frame_routing_id_(0),
+      new_frame_routing_id_(0) {
 }
 
 MockRenderThread::~MockRenderThread() {
 }
 
 void MockRenderThread::VerifyRunJavaScriptMessageSend(
     const base::string16& expected_alert_message) {
   const IPC::Message* alert_msg =
       sink_.GetUniqueMessageMatching(ViewHostMsg_RunJavaScriptMessage::ID);
   ASSERT_TRUE(alert_msg);
@@ skipping 191 matching lines @@
     int* route_id,
     int* main_frame_route_id,
     int* surface_id,
     int64* cloned_session_storage_namespace_id) {
   *route_id = new_window_routing_id_;
   *main_frame_route_id = new_window_main_frame_routing_id_;
   *surface_id = surface_id_;
   *cloned_session_storage_namespace_id = 0;
 }
 
+// The Frame expects to be returned a valid route_id different from its own.
+void MockRenderThread::OnCreateChildFrame(int new_frame_routing_id,
+                                          int64 parent_frame_id,
+                                          int64 frame_id,
+                                          const std::string& frame_name,
+                                          int* new_render_frame_id) {
+  *new_render_frame_id = new_frame_routing_id_;
+}
+
 bool MockRenderThread::OnControlMessageReceived(const IPC::Message& msg) {
   ObserverListBase<RenderProcessObserver>::Iterator it(observers_);
   RenderProcessObserver* observer;
   while ((observer = it.GetNext()) != NULL) {
     if (observer->OnControlMessageReceived(msg))
       return true;
   }
   return OnMessageReceived(msg);
 }
 
 bool MockRenderThread::OnMessageReceived(const IPC::Message& msg) {
   // Save the message in the sink.
   sink_.OnMessageReceived(msg);
 
   bool handled = true;
   bool msg_is_ok = true;
   IPC_BEGIN_MESSAGE_MAP_EX(MockRenderThread, msg, msg_is_ok)
     IPC_MESSAGE_HANDLER(ViewHostMsg_CreateWidget, OnCreateWidget)
     IPC_MESSAGE_HANDLER(ViewHostMsg_CreateWindow, OnCreateWindow)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_CreateChildFrame, OnCreateChildFrame)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
   return handled;
 }
 
 #if defined(OS_WIN)
 void MockRenderThread::OnDuplicateSection(
     base::SharedMemoryHandle renderer_handle,
     base::SharedMemoryHandle* browser_handle) {
   // We don't have to duplicate the input handles since RenderViewTest does not
   // separate a browser process from a renderer process.
   *browser_handle = renderer_handle;
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace content