Use the scheduling mechanism provided by the platform

Source/bindings/core/v8/V8Initializer.cpp

Index: Source/bindings/core/v8/V8Initializer.cpp
diff --git a/Source/bindings/core/v8/V8Initializer.cpp b/Source/bindings/core/v8/V8Initializer.cpp
index e038279daa2b5c4da13b0e062ef12ca82cbe0a07..94622a732e04029a1058652733f4d0945f8a6f77 100644
--- a/Source/bindings/core/v8/V8Initializer.cpp
+++ b/Source/bindings/core/v8/V8Initializer.cpp
@@ -52,8 +52,9 @@
 #include "platform/EventDispatchForbiddenScope.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/TraceEvent.h"
-#include "platform/scheduler/Scheduler.h"
 #include "public/platform/Platform.h"
+#include "public/platform/WebScheduler.h"
+#include "public/platform/WebTraceLocation.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/WTFString.h"
 #include <v8-debug.h>
@@ -294,29 +295,31 @@ static bool codeGenerationCheckCallbackInMainThread(v8::Local<v8::Context> conte
     return false;
 }
 
-static void idleGCTaskInMainThread(double deadlineSeconds);
+static void postIdleGCTaskMainThread();
 
-static void postIdleGCTaskMainThread()
-{
-    if (RuntimeEnabledFeatures::v8IdleTasksEnabled()) {
-        Scheduler* scheduler = Scheduler::shared();
-        if (scheduler)
-            scheduler->postIdleTask(FROM_HERE, WTF::bind<double>(idleGCTaskInMainThread));
+class IdleGCTaskInMainThread : public WebScheduler::IdleTask {
+public:
+    virtual void run(double deadlineSeconds) override
+    {
+        ASSERT(isMainThread());
+        ASSERT(RuntimeEnabledFeatures::v8IdleTasksEnabled());
+        v8::Isolate* isolate = v8::Isolate::GetCurrent();
+        // FIXME: Change V8's API to take a deadline - http://crbug.com/417668
+        double idleTimeInSeconds = deadlineSeconds - Platform::current()->monotonicallyIncreasingTime();
+        int idleTimeInMillis = static_cast<int>(idleTimeInSeconds * 1000);
+        if (idleTimeInMillis > 0)
+            isolate->IdleNotification(idleTimeInMillis);
+        // FIXME: only repost if there is more work to do.
+        postIdleGCTaskMainThread();
     }
-}
+};
 
-static void idleGCTaskInMainThread(double deadlineSeconds)
+static void postIdleGCTaskMainThread()
 {
-    ASSERT(isMainThread());
-    ASSERT(RuntimeEnabledFeatures::v8IdleTasksEnabled());
-    v8::Isolate* isolate = v8::Isolate::GetCurrent();
-    // FIXME: Change V8's API to take a deadline - http://crbug.com/417668
-    double idleTimeInSeconds = deadlineSeconds - Platform::current()->monotonicallyIncreasingTime();
-    int idleTimeInMillis = static_cast<int>(idleTimeInSeconds * 1000);
-    if (idleTimeInMillis > 0)
-        isolate->IdleNotification(idleTimeInMillis);
-    // FIXME: only repost if there is more work to do.
-    postIdleGCTaskMainThread();
+    if (!RuntimeEnabledFeatures::v8IdleTasksEnabled())
+        return;
+    if (WebScheduler* scheduler = Platform::current()->scheduler())
+        scheduler->postIdleTask(FROM_HERE.toWebTraceLocation(), new IdleGCTaskInMainThread());
 }
 
 static void timerTraceProfilerInMainThread(const char* name, int status)