Change VisualViewport to store a Page instead of a FrameHost

third_party/WebKit/Source/core/frame/VisualViewport.cpp

Index: third_party/WebKit/Source/core/frame/VisualViewport.cpp
diff --git a/third_party/WebKit/Source/core/frame/VisualViewport.cpp b/third_party/WebKit/Source/core/frame/VisualViewport.cpp
index c707cc7650298aa42ab43d4b607fa27ef60b31fe..71388154af98c38a5efdfa1ff1c72483ab7d6d24 100644
--- a/third_party/WebKit/Source/core/frame/VisualViewport.cpp
+++ b/third_party/WebKit/Source/core/frame/VisualViewport.cpp
@@ -60,8 +60,8 @@
 
 namespace blink {
 
-VisualViewport::VisualViewport(FrameHost& owner)
-    : m_frameHost(&owner),
+VisualViewport::VisualViewport(Page& owner)
+    : m_page(&owner),
       m_scale(1),
       m_browserControlsAdjustment(0),
       m_maxPageScale(-1),
@@ -74,7 +74,7 @@ VisualViewport::~VisualViewport() {
 }
 
 DEFINE_TRACE(VisualViewport) {
-  visitor->trace(m_frameHost);
+  visitor->trace(m_page);
   ScrollableArea::trace(visitor);
 }