Decouple scheduling animation of webview plugins from layout.

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

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index fdb16e9dcfdbbf52ce5c9fa3cecad45418746fcd..e1fc11094baa4e426f00528a8627a0eb479022b2 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -2605,7 +2605,7 @@ void FrameView::updateStyleAndLayoutIfNeededRecursive()
     const ChildrenWidgetSet* viewChildren = children();
     for (const RefPtrWillBeMember<Widget>& child : *viewChildren) {
         if ((*child).isPluginContainer())
-            toPluginView(child.get())->layoutIfNeeded();
+            toPluginView(child.get())->updateAllLifecyclePhases();
     }
 
     RELEASE_ASSERT(!needsLayout());