41 lines
2.2 KiB
Diff
41 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Samuel Attard <samuel.r.attard@gmail.com>
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Date: Tue, 5 Sep 2023 13:22:31 -0700
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Subject: Revert "Remove the AllowAggressiveThrottlingWithWebSocket feature."
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This reverts commit 615c1810a187840ffeb04096087efff86edb37de.
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diff --git a/third_party/blink/renderer/modules/websockets/websocket_channel_impl.cc b/third_party/blink/renderer/modules/websockets/websocket_channel_impl.cc
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index d566c1a209aa5b39692fe79dd8b5012a5e053574..90e97f739b3e7ede2fa4ceffb1be5130f651f60b 100644
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--- a/third_party/blink/renderer/modules/websockets/websocket_channel_impl.cc
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+++ b/third_party/blink/renderer/modules/websockets/websocket_channel_impl.cc
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@@ -95,6 +95,17 @@ enum WebSocketOpCode {
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kOpCodeBinary = 0x2,
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};
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+// When enabled, a page can be aggressively throttled even if it uses a
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+// WebSocket. Aggressive throttling does not affect the execution of WebSocket
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+// event handlers, so there is little reason to disable it on pages using a
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+// WebSocket.
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+//
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+// TODO(crbug.com/1121725): Cleanup this feature in June 2021, when it becomes
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+// enabled by default on Stable.
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+BASE_FEATURE(kAllowAggressiveThrottlingWithWebSocket,
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+ "AllowAggressiveThrottlingWithWebSocket",
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+ base::FEATURE_ENABLED_BY_DEFAULT);
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+
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} // namespace
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void WebSocketChannelImpl::MessageDataDeleter::operator()(char* p) const {
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@@ -285,7 +296,10 @@ bool WebSocketChannelImpl::Connect(const KURL& url, const String& protocol) {
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// even if the `WebSocketChannel` is closed.
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feature_handle_for_scheduler_ = scheduler->RegisterFeature(
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SchedulingPolicy::Feature::kWebSocket,
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- SchedulingPolicy{SchedulingPolicy::DisableBackForwardCache()});
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+ base::FeatureList::IsEnabled(kAllowAggressiveThrottlingWithWebSocket)
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+ ? SchedulingPolicy{SchedulingPolicy::DisableBackForwardCache()}
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+ : SchedulingPolicy{SchedulingPolicy::DisableAggressiveThrottling(),
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+ SchedulingPolicy::DisableBackForwardCache()});
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scheduler->RegisterStickyFeature(
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SchedulingPolicy::Feature::kWebSocketSticky,
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SchedulingPolicy{SchedulingPolicy::DisableBackForwardCache()});
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