third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.cc - Issue 2416803003: Record PendingTaskCount when a backgrounded renderer is suspended.

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Unified Diff: third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.cc

Issue 2416803003: Record PendingTaskCount when a backgrounded renderer is suspended. (Closed)

Patch Set: Add GetNumberOfPendingTasks to TaskQueueManager Created 4 years, 2 months ago

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Index: third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.cc

diff --git a/third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.cc b/third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.cc

index 0d5d624c3473fbf9c57ddb54950c5c75b4a7da83..5a17f616dcb971ae9f4446b8c1cd466aa65370f2 100644

--- a/third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.cc

+++ b/third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.cc

@@ -490,6 +490,10 @@ void RendererSchedulerImpl::SuspendRenderer() {

if (helper_.IsShutdown())

return;

suspend_timers_when_backgrounded_closure_.Cancel();

+ UMA_HISTOGRAM_COUNTS("PurgeAndSuspend.PendingTaskCount",

+ helper_.GetNumberOfPendingTasks());

// TODO(hajimehoshi): We might need to suspend not only timer queue but also

// e.g. loading tasks or postMessage.

MainThreadOnly().renderer_suspended = true;