Introduce a basic Blink Scheduler

public/platform/WebSchedulerProxy.h

Index: public/platform/WebSchedulerProxy.h
diff --git a/public/web/WebArrayBufferConverter.h b/public/platform/WebSchedulerProxy.h
similarity index 67%
copy from public/web/WebArrayBufferConverter.h
copy to public/platform/WebSchedulerProxy.h
index 1b8eea6aa5750a0d00785650244ab4c31c659732..c8d5fd35affc315346c39af652e39cf19f846f6e 100644
--- a/public/web/WebArrayBufferConverter.h
+++ b/public/platform/WebSchedulerProxy.h
@@ -28,26 +28,37 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebArrayBufferConverter_h
-#define WebArrayBufferConverter_h
+#ifndef WebSchedulerProxy_h
+#define WebSchedulerProxy_h
 
-#include "public/platform/WebArrayBuffer.h"
+#include "WebThread.h"
 
-namespace v8 {
-class Isolate;
-class Object;
-class Value;
-template <class T> class Handle;
+namespace WebCore {
+class Scheduler;
 }
 
 namespace blink {
 
-class WebArrayBufferConverter {
+class WebSchedulerProxy {
 public:
-    BLINK_EXPORT static v8::Handle<v8::Value> toV8Value(WebArrayBuffer*, v8::Handle<v8::Object>, v8::Isolate*);
-    BLINK_EXPORT static WebArrayBuffer* createFromV8Value(v8::Handle<v8::Value>, v8::Isolate*);
+    BLINK_PLATFORM_EXPORT ~WebSchedulerProxy();
+
+    BLINK_PLATFORM_EXPORT static WebSchedulerProxy create();
+
+    // Schedule an input processing task to be run on the blink main thread.
+    // Takes ownership of |Task|. Can be called from any thread.
+    BLINK_PLATFORM_EXPORT void postInputTask(WebThread::Task*);
+
+    // Schedule a compositor task to run on the blink main thread. Takes
+    // ownership of |Task|. Can be called from any thread.
+    BLINK_PLATFORM_EXPORT void postCompositorTask(WebThread::Task*);
+
+private:
+    WebSchedulerProxy();
+
+    WebCore::Scheduler* m_scheduler;
 };
 
 } // namespace blink
 
-#endif // WebArrayBufferConverter_h
+#endif // WebSchedulerProxy_h