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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" |
| (...skipping 10 matching lines...) Expand all Loading... |
| 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 } |
| (...skipping 19 matching lines...) Expand all Loading... |
| 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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