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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 #ifndef CHROME_BROWSER_NET_PREDICTOR_TAB_HELPER_H_ | 5 #ifndef CHROME_BROWSER_NET_PREDICTOR_TAB_HELPER_H_ |
6 #define CHROME_BROWSER_NET_PREDICTOR_TAB_HELPER_H_ | 6 #define CHROME_BROWSER_NET_PREDICTOR_TAB_HELPER_H_ |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "content/public/browser/notification_observer.h" | 9 #include "content/public/browser/notification_observer.h" |
10 #include "content/public/browser/notification_registrar.h" | 10 #include "content/public/browser/notification_registrar.h" |
| 11 #include "content/public/browser/reload_type.h" |
11 #include "content/public/browser/web_contents_observer.h" | 12 #include "content/public/browser/web_contents_observer.h" |
12 #include "content/public/browser/web_contents_user_data.h" | 13 #include "content/public/browser/web_contents_user_data.h" |
13 | 14 |
14 namespace content { | 15 namespace content { |
15 class NavigationHandle; | 16 class NavigationHandle; |
16 } | 17 } |
17 | 18 |
18 namespace chrome_browser_net { | 19 namespace chrome_browser_net { |
19 | 20 |
20 class PredictorTabHelper | 21 class PredictorTabHelper |
21 : public content::WebContentsObserver, | 22 : public content::WebContentsObserver, |
22 public content::WebContentsUserData<PredictorTabHelper> { | 23 public content::WebContentsUserData<PredictorTabHelper> { |
23 public: | 24 public: |
24 ~PredictorTabHelper() override; | 25 ~PredictorTabHelper() override; |
25 | 26 |
26 // content::WebContentsObserver: | 27 // content::WebContentsObserver: |
27 void DidStartNavigation( | 28 void DidStartNavigation( |
28 content::NavigationHandle* navigation_handle) override; | 29 content::NavigationHandle* navigation_handle) override; |
29 void DidStartNavigationToPendingEntry( | 30 void DidStartNavigationToPendingEntry( |
30 const GURL& url, | 31 const GURL& url, |
31 content::NavigationController::ReloadType reload_type) override; | 32 content::ReloadType reload_type) override; |
32 void DocumentOnLoadCompletedInMainFrame() override; | 33 void DocumentOnLoadCompletedInMainFrame() override; |
33 | 34 |
34 private: | 35 private: |
35 explicit PredictorTabHelper(content::WebContents* web_contents); | 36 explicit PredictorTabHelper(content::WebContents* web_contents); |
36 friend class content::WebContentsUserData<PredictorTabHelper>; | 37 friend class content::WebContentsUserData<PredictorTabHelper>; |
37 | 38 |
38 void PreconnectUrl(const GURL& url); | 39 void PreconnectUrl(const GURL& url); |
39 | 40 |
40 // This boolean is set to true after a call to | 41 // This boolean is set to true after a call to |
41 // DidStartNavigationToPendingEntry, which fires off predictive preconnects. | 42 // DidStartNavigationToPendingEntry, which fires off predictive preconnects. |
42 // This ensures that the resulting call to DidStartNavigation does not | 43 // This ensures that the resulting call to DidStartNavigation does not |
43 // duplicate these preconnects. The tab helper spawns preconnects on the | 44 // duplicate these preconnects. The tab helper spawns preconnects on the |
44 // navigation to the pending entry because DidStartNavigation is called after | 45 // navigation to the pending entry because DidStartNavigation is called after |
45 // render process spawn (pre-PlzNavigate), which can take substantial time | 46 // render process spawn (pre-PlzNavigate), which can take substantial time |
46 // especially on Android. | 47 // especially on Android. |
47 bool predicted_from_pending_entry_; | 48 bool predicted_from_pending_entry_; |
48 | 49 |
49 DISALLOW_COPY_AND_ASSIGN(PredictorTabHelper); | 50 DISALLOW_COPY_AND_ASSIGN(PredictorTabHelper); |
50 }; | 51 }; |
51 | 52 |
52 } // namespace chrome_browser_net | 53 } // namespace chrome_browser_net |
53 | 54 |
54 #endif // CHROME_BROWSER_NET_PREDICTOR_TAB_HELPER_H_ | 55 #endif // CHROME_BROWSER_NET_PREDICTOR_TAB_HELPER_H_ |
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