| // 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 "chrome/renderer/chrome_render_frame_observer.h" |
| |
| #include "chrome/common/prerender_messages.h" |
| #include "chrome/renderer/prerender/prerender_helper.h" |
| |
| ChromeRenderFrameObserver::ChromeRenderFrameObserver( |
| content::RenderFrame* render_frame) |
| : content::RenderFrameObserver(render_frame) { |
| } |
| |
| ChromeRenderFrameObserver::~ChromeRenderFrameObserver() { |
| } |
| |
| bool ChromeRenderFrameObserver::OnMessageReceived(const IPC::Message& message) { |
| // Filter only. |
| IPC_BEGIN_MESSAGE_MAP(ChromeRenderFrameObserver, message) |
| IPC_MESSAGE_HANDLER(PrerenderMsg_SetIsPrerendering, OnSetIsPrerendering); |
| IPC_END_MESSAGE_MAP() |
| |
| return false; |
| } |
| |
| void ChromeRenderFrameObserver::OnSetIsPrerendering(bool is_prerendering) { |
| if (is_prerendering) { |
| DCHECK(!prerender::PrerenderHelper::Get(render_frame())); |
| // The PrerenderHelper will destroy itself either after recording histograms |
| // or on destruction of the RenderView. |
| new prerender::PrerenderHelper(render_frame()); |
| } |
| } |