Navigation transitions (web to native app): Hide/Show transition elements (Blink side)

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 979d71ee62d10d20f61c41395c43c7ec38dfe606..b009f2055dad51d2928533ea2c5b631d6e448479 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -2317,6 +2317,16 @@ void Internals::hideAllTransitionElements()
         frame()->document()->hideTransitionElements(AtomicString(iter->selector));
 }
 
+void Internals::showAllTransitionElements()
+{
+    Vector<Document::TransitionElementData> elementData;
+    frame()->document()->getTransitionElementData(elementData);
+
+    Vector<Document::TransitionElementData>::iterator iter = elementData.begin();
+    for (; iter != elementData.end(); ++iter)
+        frame()->document()->showTransitionElements(AtomicString(iter->selector));
+}
+
 void Internals::forcePluginPlaceholder(HTMLElement* element, PassRefPtrWillBeRawPtr<DocumentFragment> fragment, ExceptionState& exceptionState)
 {
     if (!element->isPluginElement()) {