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Side by Side Diff: content/browser/loader/resource_scheduler.h

Issue 465363003: ResourceScheduler get visual signal from RenderViewHostImpl (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 4 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 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 CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_ 5 #ifndef CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_
6 #define CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_ 6 #define CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_
7 7
8 #include <map> 8 #include <map>
9 #include <set> 9 #include <set>
10 10
11 #include "base/basictypes.h" 11 #include "base/basictypes.h"
12 #include "base/compiler_specific.h" 12 #include "base/compiler_specific.h"
13 #include "base/memory/scoped_ptr.h" 13 #include "base/memory/scoped_ptr.h"
14 #include "base/threading/non_thread_safe.h" 14 #include "base/threading/non_thread_safe.h"
15 #include "base/timer/timer.h" 15 #include "base/timer/timer.h"
16 #include "content/common/content_export.h" 16 #include "content/common/content_export.h"
17 #include "content/public/browser/web_contents.h"
17 #include "net/base/priority_queue.h" 18 #include "net/base/priority_queue.h"
18 #include "net/base/request_priority.h" 19 #include "net/base/request_priority.h"
19 20
20 namespace net { 21 namespace net {
21 class HostPortPair; 22 class HostPortPair;
22 class URLRequest; 23 class URLRequest;
23 } 24 }
24 25
25 namespace content { 26 namespace content {
26 class ResourceThrottle; 27 class ResourceThrottle;
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96 97
97 // Requests that this ResourceScheduler schedule, and eventually loads, the 98 // Requests that this ResourceScheduler schedule, and eventually loads, the
98 // specified |url_request|. Caller should delete the returned ResourceThrottle 99 // specified |url_request|. Caller should delete the returned ResourceThrottle
99 // when the load completes or is canceled. 100 // when the load completes or is canceled.
100 scoped_ptr<ResourceThrottle> ScheduleRequest( 101 scoped_ptr<ResourceThrottle> ScheduleRequest(
101 int child_id, int route_id, net::URLRequest* url_request); 102 int child_id, int route_id, net::URLRequest* url_request);
102 103
103 // Signals from the UI thread, posted as tasks on the IO thread: 104 // Signals from the UI thread, posted as tasks on the IO thread:
104 105
105 // Called when a renderer is created. 106 // Called when a renderer is created.
106 void OnClientCreated(int child_id, int route_id); 107 void OnClientCreated(int child_id,
108 int route_id,
109 WebContents* web_contents);
107 110
108 // Called when a renderer is destroyed. 111 // Called when a renderer is destroyed.
109 void OnClientDeleted(int child_id, int route_id); 112 void OnClientDeleted(int child_id, int route_id);
110 113
111 // Signals from IPC messages directly from the renderers: 114 // Signals from IPC messages directly from the renderers:
112 115
113 // Called when a client navigates to a new main document. 116 // Called when a client navigates to a new main document.
114 void OnNavigate(int child_id, int route_id); 117 void OnNavigate(int child_id, int route_id);
115 118
116 // Called when the client has parsed the <body> element. This is a signal that 119 // Called when the client has parsed the <body> element. This is a signal that
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129 bool active_clients_loaded() const { return active_clients_loading_ == 0; } 132 bool active_clients_loaded() const { return active_clients_loading_ == 0; }
130 133
131 // Called when a Client starts or stops playing audio. 134 // Called when a Client starts or stops playing audio.
132 void OnAudibilityChanged(int child_id, int route_id, bool is_audible); 135 void OnAudibilityChanged(int child_id, int route_id, bool is_audible);
133 136
134 // Called when a Client is shown or hidden. 137 // Called when a Client is shown or hidden.
135 void OnVisibilityChanged(int child_id, int route_id, bool is_visible); 138 void OnVisibilityChanged(int child_id, int route_id, bool is_visible);
136 139
137 void OnLoadingStateChanged(int child_id, int route_id, bool is_loaded); 140 void OnLoadingStateChanged(int child_id, int route_id, bool is_loaded);
138 141
142 bool ClientIsVisible(int child_id, int route_id);
143
139 private: 144 private:
140 class RequestQueue; 145 class RequestQueue;
141 class ScheduledResourceRequest; 146 class ScheduledResourceRequest;
142 struct RequestPriorityParams; 147 struct RequestPriorityParams;
143 struct ScheduledResourceSorter { 148 struct ScheduledResourceSorter {
144 bool operator()(const ScheduledResourceRequest* a, 149 bool operator()(const ScheduledResourceRequest* a,
145 const ScheduledResourceRequest* b) const; 150 const ScheduledResourceRequest* b) const;
146 }; 151 };
147 class Client; 152 class Client;
148 153
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196 size_t active_clients_loading_; 201 size_t active_clients_loading_;
197 size_t coalesced_clients_; 202 size_t coalesced_clients_;
198 // This is a repeating timer to initiate requests on COALESCED Clients. 203 // This is a repeating timer to initiate requests on COALESCED Clients.
199 scoped_ptr<base::Timer> coalescing_timer_; 204 scoped_ptr<base::Timer> coalescing_timer_;
200 RequestSet unowned_requests_; 205 RequestSet unowned_requests_;
201 }; 206 };
202 207
203 } // namespace content 208 } // namespace content
204 209
205 #endif // CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_ 210 #endif // CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_H_
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