Reverting changes that made window.scroll properties relative to the layout viewport.

third_party/WebKit/Source/core/testing/DummyPageHolder.cpp

Index: third_party/WebKit/Source/core/testing/DummyPageHolder.cpp
diff --git a/third_party/WebKit/Source/core/testing/DummyPageHolder.cpp b/third_party/WebKit/Source/core/testing/DummyPageHolder.cpp
index 9a6696d9f19bb6e56a18f89af168c73c467582ae..2e9b253d93c91c7faa096fc4c3a1c8d7e6a5d08c 100644
--- a/third_party/WebKit/Source/core/testing/DummyPageHolder.cpp
+++ b/third_party/WebKit/Source/core/testing/DummyPageHolder.cpp
@@ -30,8 +30,9 @@
 
 #include "core/testing/DummyPageHolder.h"
 
-#include "core/frame/LocalDOMWindow.h"
+#include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
+#include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/loader/EmptyClients.h"
@@ -82,6 +83,7 @@ DummyPageHolder::DummyPageHolder(
 
     m_frame = LocalFrame::create(m_frameLoaderClient.get(), &m_page->frameHost(), 0);
     m_frame->setView(FrameView::create(m_frame.get(), initialViewSize));
+    m_frame->view()->page()->frameHost().visualViewport().setSize(initialViewSize);
     m_frame->init();
 }