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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/browser/prerender/prerender_observer.h" | 5 #include "chrome/browser/prerender/prerender_observer.h" |
6 | 6 |
7 #include "base/time.h" | 7 #include "base/time.h" |
8 #include "chrome/browser/prerender/prerender_manager.h" | 8 #include "chrome/browser/prerender/prerender_manager.h" |
9 #include "chrome/browser/profiles/profile.h" | 9 #include "chrome/browser/profiles/profile.h" |
10 #include "content/browser/tab_contents/tab_contents.h" | 10 #include "content/browser/tab_contents/tab_contents.h" |
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21 } | 21 } |
22 | 22 |
23 void PrerenderObserver::ProvisionalChangeToMainFrameUrl(const GURL& url, | 23 void PrerenderObserver::ProvisionalChangeToMainFrameUrl(const GURL& url, |
24 bool has_opener_set) { | 24 bool has_opener_set) { |
25 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); | 25 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); |
26 if (!prerender_manager) | 26 if (!prerender_manager) |
27 return; | 27 return; |
28 if (prerender_manager->IsTabContentsPrerendering(tab_contents())) | 28 if (prerender_manager->IsTabContentsPrerendering(tab_contents())) |
29 return; | 29 return; |
30 prerender_manager->MarkTabContentsAsNotPrerendered(tab_contents()); | 30 prerender_manager->MarkTabContentsAsNotPrerendered(tab_contents()); |
31 MaybeUsePreloadedPage(url, has_opener_set); | 31 MaybeUsePrerenderedPage(url, has_opener_set); |
32 prerender_manager->RecordNavigation(url); | 32 prerender_manager->RecordNavigation(url); |
33 } | 33 } |
34 | 34 |
35 bool PrerenderObserver::OnMessageReceived(const IPC::Message& message) { | 35 bool PrerenderObserver::OnMessageReceived(const IPC::Message& message) { |
36 IPC_BEGIN_MESSAGE_MAP(PrerenderObserver, message) | 36 IPC_BEGIN_MESSAGE_MAP(PrerenderObserver, message) |
37 IPC_MESSAGE_HANDLER(ViewHostMsg_DidStartProvisionalLoadForFrame, | 37 IPC_MESSAGE_HANDLER(ViewHostMsg_DidStartProvisionalLoadForFrame, |
38 OnDidStartProvisionalLoadForFrame) | 38 OnDidStartProvisionalLoadForFrame) |
39 IPC_END_MESSAGE_MAP() | 39 IPC_END_MESSAGE_MAP() |
40 return false; | 40 return false; |
41 } | 41 } |
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61 } | 61 } |
62 | 62 |
63 // Reset the PPLT metric. | 63 // Reset the PPLT metric. |
64 pplt_load_start_ = base::TimeTicks(); | 64 pplt_load_start_ = base::TimeTicks(); |
65 } | 65 } |
66 | 66 |
67 PrerenderManager* PrerenderObserver::MaybeGetPrerenderManager() { | 67 PrerenderManager* PrerenderObserver::MaybeGetPrerenderManager() { |
68 return tab_contents()->profile()->GetPrerenderManager(); | 68 return tab_contents()->profile()->GetPrerenderManager(); |
69 } | 69 } |
70 | 70 |
71 bool PrerenderObserver::MaybeUsePreloadedPage(const GURL& url, | 71 bool PrerenderObserver::MaybeUsePrerenderedPage(const GURL& url, |
72 bool has_opener_set) { | 72 bool has_opener_set) { |
73 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); | 73 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); |
74 if (!prerender_manager) | 74 if (!prerender_manager) |
75 return false; | 75 return false; |
76 DCHECK(!prerender_manager->IsTabContentsPrerendering(tab_contents())); | 76 DCHECK(!prerender_manager->IsTabContentsPrerendering(tab_contents())); |
77 return prerender_manager->MaybeUsePreloadedPage(tab_contents(), | 77 return prerender_manager->MaybeUsePrerenderedPage(tab_contents(), |
78 url, | 78 url, |
79 has_opener_set); | 79 has_opener_set); |
80 } | 80 } |
81 | 81 |
82 bool PrerenderObserver::IsPrerendering() { | 82 bool PrerenderObserver::IsPrerendering() { |
83 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); | 83 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); |
84 if (!prerender_manager) | 84 if (!prerender_manager) |
85 return false; | 85 return false; |
86 return prerender_manager->IsTabContentsPrerendering(tab_contents()); | 86 return prerender_manager->IsTabContentsPrerendering(tab_contents()); |
87 } | 87 } |
88 | 88 |
89 void PrerenderObserver::PrerenderSwappedIn() { | 89 void PrerenderObserver::PrerenderSwappedIn() { |
90 // Ensure we are not prerendering any more. | 90 // Ensure we are not prerendering any more. |
91 DCHECK(!IsPrerendering()); | 91 DCHECK(!IsPrerendering()); |
92 if (pplt_load_start_.is_null()) { | 92 if (pplt_load_start_.is_null()) { |
93 // If we have already finished loading, report a 0 PPLT. | 93 // If we have already finished loading, report a 0 PPLT. |
94 PrerenderManager::RecordPerceivedPageLoadTime(base::TimeDelta(), | 94 PrerenderManager::RecordPerceivedPageLoadTime(base::TimeDelta(), |
95 tab_contents()); | 95 tab_contents()); |
96 } else { | 96 } else { |
97 // If we have not finished loading yet, rebase the start time to now. | 97 // If we have not finished loading yet, rebase the start time to now. |
98 pplt_load_start_ = base::TimeTicks::Now(); | 98 pplt_load_start_ = base::TimeTicks::Now(); |
99 } | 99 } |
100 } | 100 } |
101 | 101 |
102 } // namespace prerender | 102 } // namespace prerender |
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