Pass per-frame task runners to Workers (when possible)

third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.cpp

Index: third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.cpp
diff --git a/third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.cpp b/third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.cpp
index eb7d39119011adb69e2f6202caa331b99e9f83b1..b0d0e0318242ea659dc611b209fca5c22fdca560 100644
--- a/third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.cpp
+++ b/third_party/WebKit/Source/core/workers/InProcessWorkerObjectProxy.cpp
@@ -37,6 +37,9 @@
 #include "core/dom/ExecutionContext.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/workers/InProcessWorkerMessagingProxy.h"
+#include "core/workers/ParentFrameTaskRunners.h"
+#include "platform/CrossThreadFunctional.h"
+#include "public/platform/WebTaskRunner.h"
 #include "wtf/Functional.h"
 #include "wtf/PtrUtil.h"
 #include <memory>
@@ -51,50 +54,55 @@ std::unique_ptr<InProcessWorkerObjectProxy> InProcessWorkerObjectProxy::create(I
 
 void InProcessWorkerObjectProxy::postMessageToWorkerObject(PassRefPtr<SerializedScriptValue> message, std::unique_ptr<MessagePortChannelArray> channels)
 {
-    getExecutionContext()->postTask(BLINK_FROM_HERE, createCrossThreadTask(&InProcessWorkerMessagingProxy::postMessageToWorkerObject, crossThreadUnretained(m_messagingProxy), message, passed(std::move(channels))));
+    getParentFrameTaskRunners()->getUnthrottledTaskRunner()->postTask(BLINK_FROM_HERE, crossThreadBind(&InProcessWorkerMessagingProxy::postMessageToWorkerObject, crossThreadUnretained(m_messagingProxy), message, passed(std::move(channels))));
 }
 
 void InProcessWorkerObjectProxy::postTaskToMainExecutionContext(std::unique_ptr<ExecutionContextTask> task)
 {
+    // TODO(hiroshige,yuryu): Make this not use ExecutionContextTask and use
+    // getParentFrameTaskRunners() instead.
     getExecutionContext()->postTask(BLINK_FROM_HERE, std::move(task));
 }
 
 void InProcessWorkerObjectProxy::confirmMessageFromWorkerObject(bool hasPendingActivity)
 {
-    getExecutionContext()->postTask(BLINK_FROM_HERE, createCrossThreadTask(&InProcessWorkerMessagingProxy::confirmMessageFromWorkerObject, crossThreadUnretained(m_messagingProxy), hasPendingActivity));
+    getParentFrameTaskRunners()->getUnthrottledTaskRunner()->postTask(BLINK_FROM_HERE, crossThreadBind(&InProcessWorkerMessagingProxy::confirmMessageFromWorkerObject, crossThreadUnretained(m_messagingProxy), hasPendingActivity));
 }
 
 void InProcessWorkerObjectProxy::reportPendingActivity(bool hasPendingActivity)
 {
-    getExecutionContext()->postTask(BLINK_FROM_HERE, createCrossThreadTask(&InProcessWorkerMessagingProxy::reportPendingActivity, crossThreadUnretained(m_messagingProxy), hasPendingActivity));
+    getParentFrameTaskRunners()->getUnthrottledTaskRunner()->postTask(BLINK_FROM_HERE, crossThreadBind(&InProcessWorkerMessagingProxy::reportPendingActivity, crossThreadUnretained(m_messagingProxy), hasPendingActivity));
 }
 
 void InProcessWorkerObjectProxy::reportException(const String& errorMessage, std::unique_ptr<SourceLocation> location)
 {
-    getExecutionContext()->postTask(BLINK_FROM_HERE, createCrossThreadTask(&InProcessWorkerMessagingProxy::reportException, crossThreadUnretained(m_messagingProxy), errorMessage, passed(std::move(location))));
+    getParentFrameTaskRunners()->getUnthrottledTaskRunner()->postTask(BLINK_FROM_HERE, crossThreadBind(&InProcessWorkerMessagingProxy::reportException, crossThreadUnretained(m_messagingProxy), errorMessage, passed(std::move(location))));
 }
 
 void InProcessWorkerObjectProxy::reportConsoleMessage(ConsoleMessage* consoleMessage)
 {
-    getExecutionContext()->postTask(BLINK_FROM_HERE, createCrossThreadTask(&InProcessWorkerMessagingProxy::reportConsoleMessage, crossThreadUnretained(m_messagingProxy), consoleMessage->source(), consoleMessage->level(), consoleMessage->message(), passed(consoleMessage->location()->clone())));
+    getParentFrameTaskRunners()->getUnthrottledTaskRunner()->postTask(BLINK_FROM_HERE, crossThreadBind(&InProcessWorkerMessagingProxy::reportConsoleMessage, crossThreadUnretained(m_messagingProxy), consoleMessage->source(), consoleMessage->level(), consoleMessage->message(), passed(consoleMessage->location()->clone())));
 }
 
 void InProcessWorkerObjectProxy::postMessageToPageInspector(const String& message)
 {
     ExecutionContext* context = getExecutionContext();
-    if (context->isDocument())
+    if (context->isDocument()) {
+        // TODO(hiroshige): consider using getParentFrameTaskRunners() here
+        // too.
         toDocument(context)->postInspectorTask(BLINK_FROM_HERE, createCrossThreadTask(&InProcessWorkerMessagingProxy::postMessageToPageInspector, crossThreadUnretained(m_messagingProxy), message));
+    }
 }
 
 void InProcessWorkerObjectProxy::workerGlobalScopeClosed()
 {
-    getExecutionContext()->postTask(BLINK_FROM_HERE, createCrossThreadTask(&InProcessWorkerMessagingProxy::terminateWorkerGlobalScope, crossThreadUnretained(m_messagingProxy)));
+    getParentFrameTaskRunners()->getUnthrottledTaskRunner()->postTask(BLINK_FROM_HERE, crossThreadBind(&InProcessWorkerMessagingProxy::terminateWorkerGlobalScope, crossThreadUnretained(m_messagingProxy)));
 }
 
 void InProcessWorkerObjectProxy::workerThreadTerminated()
 {
     // This will terminate the MessagingProxy.
-    getExecutionContext()->postTask(BLINK_FROM_HERE, createCrossThreadTask(&InProcessWorkerMessagingProxy::workerThreadTerminated, crossThreadUnretained(m_messagingProxy)));
+    getParentFrameTaskRunners()->getUnthrottledTaskRunner()->postTask(BLINK_FROM_HERE, crossThreadBind(&InProcessWorkerMessagingProxy::workerThreadTerminated, crossThreadUnretained(m_messagingProxy)));
 }
 
 InProcessWorkerObjectProxy::InProcessWorkerObjectProxy(InProcessWorkerMessagingProxy* messagingProxy)
@@ -102,6 +110,12 @@ InProcessWorkerObjectProxy::InProcessWorkerObjectProxy(InProcessWorkerMessagingP
 {
 }
 
+ParentFrameTaskRunners* InProcessWorkerObjectProxy::getParentFrameTaskRunners()
+{
+    DCHECK(m_messagingProxy);
+    return m_messagingProxy->getParentFrameTaskRunners();
+}
+
 ExecutionContext* InProcessWorkerObjectProxy::getExecutionContext()
 {
     DCHECK(m_messagingProxy);