Enable/Unprefix Animations & Transitions, add basic tests

sky/engine/web/WebDocument.cpp

Index: sky/engine/web/WebDocument.cpp
diff --git a/sky/engine/web/WebDocument.cpp b/sky/engine/web/WebDocument.cpp
index ac5bd12fc12192422c7c4167c992f18db011b7c1..954f0be142d5e382b48f405988cba3c81c06c7c3 100644
--- a/sky/engine/web/WebDocument.cpp
+++ b/sky/engine/web/WebDocument.cpp
@@ -35,6 +35,7 @@
 #include "sky/engine/bindings/core/v8/ExceptionState.h"
 #include "sky/engine/bindings/core/v8/ScriptState.h"
 #include "sky/engine/bindings/core/v8/ScriptValue.h"
+#include "sky/engine/core/animation/AnimationTimeline.h"
 #include "sky/engine/core/css/StyleSheetContents.h"
 #include "sky/engine/core/dom/Document.h"
 #include "sky/engine/core/dom/Element.h"
@@ -138,6 +139,11 @@ v8::Handle<v8::Value> WebDocument::registerEmbedderCustomElement(const WebString
     return constructor.v8Value();
 }
 
+void WebDocument::pauseAnimationsForTesting(double pauseTime) const {
+    constUnwrap<Document>()->frame()->view()->updateLayoutAndStyleForPainting();
+    constUnwrap<Document>()->timeline().pauseAnimationsForTesting(pauseTime);
+}
+
 WebDocument::WebDocument(const PassRefPtr<Document>& elem)
     : WebNode(elem)
 {