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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/renderer/prerender/prerender_webmediaplayer.h" | |
6 | |
7 #include "base/callback_helpers.h" | |
8 #include "chrome/common/prerender_messages.h" | |
9 #include "content/public/renderer/render_view.h" | |
10 | |
11 namespace prerender { | |
12 | |
13 PrerenderWebMediaPlayer::PrerenderWebMediaPlayer( | |
14 content::RenderView* render_view, | |
15 const base::Closure& closure) | |
16 : RenderViewObserver(render_view), | |
17 is_prerendering_(true), | |
18 continue_loading_cb_(closure) { | |
19 DCHECK(!continue_loading_cb_.is_null()); | |
20 } | |
21 | |
22 PrerenderWebMediaPlayer::~PrerenderWebMediaPlayer() {} | |
23 | |
24 bool PrerenderWebMediaPlayer::OnMessageReceived(const IPC::Message& message) { | |
25 IPC_BEGIN_MESSAGE_MAP(PrerenderWebMediaPlayer, message) | |
26 IPC_MESSAGE_HANDLER(PrerenderMsg_SetIsPrerendering, OnSetIsPrerendering) | |
27 IPC_END_MESSAGE_MAP() | |
28 | |
29 return false; | |
30 } | |
31 | |
32 void PrerenderWebMediaPlayer::OnSetIsPrerendering(bool is_prerendering) { | |
33 // Prerendering can only be enabled prior to a RenderView's first | |
34 // navigation, so no PrerenderWebMediaPlayer should see the notification | |
35 // that enables prerendering. | |
36 DCHECK(!is_prerendering); | |
37 if (!is_prerendering_ || is_prerendering) | |
38 return; | |
39 | |
40 is_prerendering_ = false; | |
41 base::ResetAndReturn(&continue_loading_cb_).Run(); | |
42 } | |
43 | |
44 } // namespace prerender | |
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