80 lines
4.1 KiB
Diff
80 lines
4.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Cheng Zhao <zcbenz@gmail.com>
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Date: Thu, 20 Sep 2018 17:47:12 -0700
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Subject: worker_context_will_destroy.patch
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diff --git a/content/public/renderer/content_renderer_client.h b/content/public/renderer/content_renderer_client.h
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index 902bd023e6d2e26a5a89ed441651edd5f364f009..906920393c34043d19183064a2a4506c0a03e80d 100644
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--- a/content/public/renderer/content_renderer_client.h
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+++ b/content/public/renderer/content_renderer_client.h
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@@ -383,6 +383,11 @@ class CONTENT_EXPORT ContentRendererClient {
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virtual void DidInitializeWorkerContextOnWorkerThread(
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v8::Local<v8::Context> context) {}
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+ // Notifies that a worker context will be destroyed. This function is called
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+ // from the worker thread.
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+ virtual void WillDestroyWorkerContextOnWorkerThread(
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+ v8::Local<v8::Context> context) {}
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+
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// Overwrites the given URL to use an HTML5 embed if possible.
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// An empty URL is returned if the URL is not overriden.
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virtual GURL OverrideFlashEmbedWithHTML(const GURL& url);
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diff --git a/content/renderer/renderer_blink_platform_impl.cc b/content/renderer/renderer_blink_platform_impl.cc
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index 875a9079d0d5e97d04ca9870cb1d35dbe39fb24b..08cdba51792cbc73eb55ca7bb1d0ca1711ca97e8 100644
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--- a/content/renderer/renderer_blink_platform_impl.cc
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+++ b/content/renderer/renderer_blink_platform_impl.cc
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@@ -994,6 +994,12 @@ void RendererBlinkPlatformImpl::WillStopWorkerThread() {
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WorkerThreadRegistry::Instance()->WillStopCurrentWorkerThread();
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}
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+void RendererBlinkPlatformImpl::WorkerContextWillDestroy(
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+ const v8::Local<v8::Context>& worker) {
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+ GetContentClient()->renderer()->WillDestroyWorkerContextOnWorkerThread(
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+ worker);
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+}
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+
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void RendererBlinkPlatformImpl::WorkerContextCreated(
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const v8::Local<v8::Context>& worker) {
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GetContentClient()->renderer()->DidInitializeWorkerContextOnWorkerThread(
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diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
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index b183977096477563043b288b33d90d3ce9fbd8de..87bd2530eb060c8e68a5a2ca090ce80cd63b942e 100644
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--- a/content/renderer/renderer_blink_platform_impl.h
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+++ b/content/renderer/renderer_blink_platform_impl.h
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@@ -200,6 +200,7 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
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void DidStartWorkerThread() override;
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void WillStopWorkerThread() override;
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void WorkerContextCreated(const v8::Local<v8::Context>& worker) override;
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+ void WorkerContextWillDestroy(const v8::Local<v8::Context>& worker) override;
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bool IsExcludedHeaderForServiceWorkerFetchEvent(
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const blink::WebString& header_name) override;
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diff --git a/third_party/blink/public/platform/platform.h b/third_party/blink/public/platform/platform.h
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index 83b3a264c0731acb567401ce64085560470a457f..70cab2fd7d3f5a30683ad2c8da7dcd453f939502 100644
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--- a/third_party/blink/public/platform/platform.h
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+++ b/third_party/blink/public/platform/platform.h
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@@ -692,6 +692,7 @@ class BLINK_PLATFORM_EXPORT Platform {
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virtual void DidStartWorkerThread() {}
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virtual void WillStopWorkerThread() {}
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virtual void WorkerContextCreated(const v8::Local<v8::Context>& worker) {}
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+ virtual void WorkerContextWillDestroy(const v8::Local<v8::Context>& worker) {}
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virtual bool AllowScriptExtensionForServiceWorker(
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const WebSecurityOrigin& script_origin) {
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return false;
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diff --git a/third_party/blink/renderer/core/workers/worker_thread.cc b/third_party/blink/renderer/core/workers/worker_thread.cc
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index d16b0ea72e4d0c0371bbb145c4f4c26b4d5c19e2..bd4af3ae2df62968aaf9001db8eda006a96d307b 100644
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--- a/third_party/blink/renderer/core/workers/worker_thread.cc
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+++ b/third_party/blink/renderer/core/workers/worker_thread.cc
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@@ -680,6 +680,12 @@ void WorkerThread::PrepareForShutdownOnWorkerThread() {
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nested_runner_->QuitNow();
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}
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+ {
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+ v8::HandleScope handle_scope(GetIsolate());
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+ Platform::Current()->WorkerContextWillDestroy(
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+ GlobalScope()->ScriptController()->GetContext());
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+ }
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+
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if (WorkerThreadDebugger* debugger = WorkerThreadDebugger::From(GetIsolate()))
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debugger->WorkerThreadDestroyed(this);
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