Reland: Reland: Implement new Blink IDL attribute [SetReference]

Source/core/testing/Internals.cpp

Index: Source/core/testing/Internals.cpp
diff --git a/Source/core/testing/Internals.cpp b/Source/core/testing/Internals.cpp
index f9e810b7c49f4b004153d3ce468b08482ceb3304..45201669d84f042285e71bd3f9444fdb084ba283 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -207,6 +207,7 @@ Internals::Internals(Document* document)
     : ContextLifecycleObserver(document)
     , m_runtimeFlags(InternalRuntimeFlags::create())
     , m_scrollingCoordinator(document->page() ? document->page()->scrollingCoordinator() : 0)
+    , m_gcWithoutContextTimer(this, &Internals::garbageCollectV8WithoutContextTimerFired)
 {
 }
 
@@ -2240,4 +2241,16 @@ bool Internals::loseSharedGraphicsContext3D()
     return true;
 }
 
+void Internals::garbageCollectV8WithoutContext()

[haraken, 2013/10/29 01:14:53]

garbageCollectV8WithoutContext => collectGarbageWithoutV8Context

+{
+    m_gcWithoutContextTimer.startOneShot(0);

[haraken, 2013/10/29 01:14:53]

Why do you need a timer?

+}
+
+void Internals::garbageCollectV8WithoutContextTimerFired(Timer<Internals>*)
+{
+    const int largeEnoughValueToTriggerMajorGC = 10000;
+    for (int i = 0; i < 100; ++i)
+        v8::V8::IdleNotification(largeEnoughValueToTriggerMajorGC);

[haraken, 2013/10/29 01:14:53]

This is not a reliable way to trigger GC. Instead you can call:

  V8ScriptRunner::compileAndRunInternalScript(v8String("if (gc) gc();",
isolate), isolate);

+}
+
 }