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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 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_LINK_MANAGER_H_ | |
6 #define CHROME_BROWSER_PRERENDER_PRERENDER_LINK_MANAGER_H_ | |
7 #pragma once | |
8 | |
9 #include <map> | |
10 #include <utility> | |
11 | |
12 #include "base/basictypes.h" | |
13 #include "base/gtest_prod_util.h" | |
14 #include "chrome/browser/profiles/profile_keyed_service.h" | |
15 #include "googleurl/src/gurl.h" | |
16 | |
17 class Profile; | |
18 | |
19 namespace content { | |
20 struct Referrer; | |
21 } | |
22 | |
23 namespace gfx { | |
24 class Size; | |
25 } | |
26 | |
27 namespace prerender { | |
28 | |
29 class PrerenderManager; | |
30 | |
31 // PrerenderLinkManager implements the API on Link elements for all documents | |
32 // being rendered in this chrome instance. It receives messages from the | |
33 // renderer indicating addition, cancelation and abandonment of link elements, | |
34 // and controls the PrerenderManager accordingly. | |
35 class PrerenderLinkManager : public ProfileKeyedService { | |
36 public: | |
37 explicit PrerenderLinkManager(PrerenderManager* manager); | |
38 virtual ~PrerenderLinkManager(); | |
39 | |
40 // A <link rel=prerender ...> element has been inserted into the document. | |
41 // The |prerender_id| must be unique per |child_id|, and is typically | |
42 // assigned by the WebPrerendererClient. | |
dominich
2012/04/30 15:52:05
Is it ever not assigned by the WebPrerendererClien
gavinp
2012/04/30 23:55:39
No, never. Fixed.
| |
43 // Returns true if the prerender was accepted by the prerender manager, | |
44 // and false if not. In either case, the |prerender_id| is usable for | |
45 // future OnCancelPrerender and OnAbandonPrerender calls. | |
46 bool OnAddPrerender( | |
47 int child_id, | |
48 int prerender_id, | |
49 const GURL& url, | |
50 const content::Referrer& referrer, | |
51 const gfx::Size& size, | |
52 int render_view_route_id); | |
53 | |
54 // A <link rel=prerender ...> element has been explicitly removed from a | |
55 // document. | |
56 void OnCancelPrerender(int prerender_id, int child_id); | |
mmenke
2012/04/30 18:35:22
nit swap argument order, here and below.
gavinp
2012/04/30 23:55:39
Yes. Thanks for catching this; I should have done
| |
57 | |
58 // A renderer launching <link rel=prerender ...> has navigated away from the | |
59 // launching page, the launching renderer process has crashed, or perhaps the | |
60 // renderer process was fast-closed when the last render view in it was | |
61 // closed. | |
62 void OnAbandonPrerender(int prerender_id, int child_id); | |
63 | |
64 // If a renderer channel closes (crash, fast exit, etc...), that's effectively | |
65 // an abandon of any prerenders launched by that child. | |
66 void OnChannelClosing(int child_id); | |
67 | |
68 private: | |
69 FRIEND_TEST_ALL_PREFIXES(PrerenderBrowserTest, PrerenderPage); | |
70 FRIEND_TEST_ALL_PREFIXES(PrerenderBrowserTest, PrerenderPageRemovingLink); | |
71 FRIEND_TEST_ALL_PREFIXES(PrerenderBrowserTest, | |
72 PrerenderPageRemovingLinkWithTwoLinks); | |
73 FRIEND_TEST_ALL_PREFIXES(PrerenderBrowserTest, | |
74 PrerenderPageRemovingLinkWithTwoLinksRemovingOne); | |
75 friend class PrerenderTest; | |
76 | |
77 typedef std::pair<int, int> ChildAndPrerenderIdPair; | |
78 typedef std::map<ChildAndPrerenderIdPair, GURL> IdPairToUrlMap; | |
79 typedef std::multimap<GURL, ChildAndPrerenderIdPair> UrlToIdPairMap; | |
dominich
2012/04/30 15:52:05
This type isn't used any more, is it?
gavinp
2012/04/30 23:55:39
Done.
| |
80 | |
81 void RemovePrerender(const IdPairToUrlMap::iterator& id_url_iter); | |
82 | |
83 bool IsEmpty() const; | |
84 | |
85 PrerenderManager* manager_; | |
86 IdPairToUrlMap ids_to_url_map_; | |
87 | |
88 DISALLOW_COPY_AND_ASSIGN(PrerenderLinkManager); | |
89 }; | |
90 | |
91 } // namespace prerender | |
92 | |
93 #endif // CHROME_BROWSER_PRERENDER_PRERENDER_LINK_MANAGER_H_ | |
94 | |
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