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Side by Side Diff: content/browser/net/network_quality_observer_impl.cc

Issue 2863973003: Expose RTT and downlink bandwidth using experimental Javascript API (Closed)
Patch Set: Rebase, haraken's comment Created 3 years, 7 months ago
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1 // Copyright 2017 The Chromium Authors. All rights reserved. 1 // Copyright 2017 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 "content/browser/net/network_quality_observer_impl.h" 5 #include "content/browser/net/network_quality_observer_impl.h"
6 6
7 #include "base/memory/ptr_util.h" 7 #include "base/memory/ptr_util.h"
8 #include "content/browser/renderer_host/render_process_host_impl.h" 8 #include "content/browser/renderer_host/render_process_host_impl.h"
9 #include "content/common/view_messages.h" 9 #include "content/common/view_messages.h"
10 #include "content/public/browser/browser_thread.h" 10 #include "content/public/browser/browser_thread.h"
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74 void OnRTTOrThroughputEstimatesComputed( 74 void OnRTTOrThroughputEstimatesComputed(
75 const net::nqe::internal::NetworkQuality& network_quality) { 75 const net::nqe::internal::NetworkQuality& network_quality) {
76 DCHECK_CURRENTLY_ON(BrowserThread::UI); 76 DCHECK_CURRENTLY_ON(BrowserThread::UI);
77 77
78 last_notified_network_quality_ = network_quality; 78 last_notified_network_quality_ = network_quality;
79 79
80 // Notify all the existing renderers of the change in the network quality. 80 // Notify all the existing renderers of the change in the network quality.
81 for (RenderProcessHost::iterator it(RenderProcessHost::AllHostsIterator()); 81 for (RenderProcessHost::iterator it(RenderProcessHost::AllHostsIterator());
82 !it.IsAtEnd(); it.Advance()) { 82 !it.IsAtEnd(); it.Advance()) {
83 it.GetCurrentValue()->GetRendererInterface()->OnNetworkQualityChanged( 83 it.GetCurrentValue()->GetRendererInterface()->OnNetworkQualityChanged(
84 last_notified_network_quality_.http_rtt().InMilliseconds(), 84 last_notified_network_quality_.http_rtt(),
85 last_notified_network_quality_.transport_rtt().InMilliseconds(), 85 last_notified_network_quality_.transport_rtt(),
86 last_notified_network_quality_.downstream_throughput_kbps()); 86 last_notified_network_quality_.downstream_throughput_kbps());
87 } 87 }
88 } 88 }
89 89
90 private: 90 private:
91 // NotificationObserver implementation: 91 // NotificationObserver implementation:
92 void Observe(int type, 92 void Observe(int type,
93 const NotificationSource& source, 93 const NotificationSource& source,
94 const NotificationDetails& details) override { 94 const NotificationDetails& details) override {
95 DCHECK_CURRENTLY_ON(BrowserThread::UI); 95 DCHECK_CURRENTLY_ON(BrowserThread::UI);
96 DCHECK_EQ(NOTIFICATION_RENDERER_PROCESS_CREATED, type); 96 DCHECK_EQ(NOTIFICATION_RENDERER_PROCESS_CREATED, type);
97 97
98 RenderProcessHost* rph = Source<RenderProcessHost>(source).ptr(); 98 RenderProcessHost* rph = Source<RenderProcessHost>(source).ptr();
99 99
100 // Notify the newly created renderer of the current network quality. 100 // Notify the newly created renderer of the current network quality.
101 rph->GetRendererInterface()->OnNetworkQualityChanged( 101 rph->GetRendererInterface()->OnNetworkQualityChanged(
102 last_notified_network_quality_.http_rtt().InMilliseconds(), 102 last_notified_network_quality_.http_rtt(),
103 last_notified_network_quality_.transport_rtt().InMilliseconds(), 103 last_notified_network_quality_.transport_rtt(),
104 last_notified_network_quality_.downstream_throughput_kbps()); 104 last_notified_network_quality_.downstream_throughput_kbps());
105 } 105 }
106 106
107 content::NotificationRegistrar registrar_; 107 content::NotificationRegistrar registrar_;
108 108
109 // The network quality that was last sent to the renderers. 109 // The network quality that was last sent to the renderers.
110 net::nqe::internal::NetworkQuality last_notified_network_quality_; 110 net::nqe::internal::NetworkQuality last_notified_network_quality_;
111 111
112 DISALLOW_COPY_AND_ASSIGN(UiThreadObserver); 112 DISALLOW_COPY_AND_ASSIGN(UiThreadObserver);
113 }; 113 };
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175 } 175 }
176 176
177 std::unique_ptr<net::NetworkQualityEstimator::RTTAndThroughputEstimatesObserver> 177 std::unique_ptr<net::NetworkQualityEstimator::RTTAndThroughputEstimatesObserver>
178 CreateNetworkQualityObserver( 178 CreateNetworkQualityObserver(
179 net::NetworkQualityEstimator* network_quality_estimator) { 179 net::NetworkQualityEstimator* network_quality_estimator) {
180 return base::MakeUnique<NetworkQualityObserverImpl>( 180 return base::MakeUnique<NetworkQualityObserverImpl>(
181 network_quality_estimator); 181 network_quality_estimator);
182 } 182 }
183 183
184 } // namespace content 184 } // namespace content
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