Expose Web Animations API to Web Workers

Source/core/workers/WorkerGlobalScope.cpp

Index: Source/core/workers/WorkerGlobalScope.cpp
diff --git a/Source/core/workers/WorkerGlobalScope.cpp b/Source/core/workers/WorkerGlobalScope.cpp
index 62529dfb043ba36301adffc8ef54fa7e93ef0fda..da890afc213186bf865db94d931b72075c35e083 100644
--- a/Source/core/workers/WorkerGlobalScope.cpp
+++ b/Source/core/workers/WorkerGlobalScope.cpp
@@ -35,6 +35,7 @@
 #include "core/dom/ActiveDOMObject.h"
 #include "core/dom/AddConsoleMessageTask.h"
 #include "core/dom/ContextLifecycleNotifier.h"
+#include "core/dom/CrossThreadTask.h"
 #include "core/dom/DOMURL.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/MessagePort.h"
@@ -99,6 +100,29 @@ WorkerGlobalScope::~WorkerGlobalScope()
 {
 }
 
+void WorkerGlobalScope::requestAnimationFrame(PassOwnPtr<RequestAnimationFrameCallback> insert)
+{
+    if (!rAFPendingList) {
+        rAFPendingList = adoptPtr(new Vector<OwnPtr<RequestAnimationFrameCallback> >());
+    }
+    rAFPendingList->append(insert);
+}
+
+void WorkerGlobalScope::processRAF(double monotonicAnimationStartTime)
+{
+    postTask(createCrossThreadTask(&WorkerGlobalScope::processRAFOnWorkerThread, this, monotonicAnimationStartTime));
+}
+
+void WorkerGlobalScope::processRAFOnWorkerThread(double monotonicAnimationStartTime)
+{
+    if (!rAFPendingList)
+        return;
+    OwnPtr<Vector<OwnPtr<RequestAnimationFrameCallback> > > oldRAFList = rAFPendingList.release();
+    for (unsigned i = 0; i < oldRAFList->size(); i++) {
+        oldRAFList->at(i)->handleEvent(monotonicAnimationStartTime);
+    }
+}
+
 void WorkerGlobalScope::applyContentSecurityPolicyFromString(const String& policy, ContentSecurityPolicyHeaderType contentSecurityPolicyType)
 {
     setContentSecurityPolicy(ContentSecurityPolicy::create(this));