Revert of Remove unneeded calls to plugin.SetParentVisible.

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

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 4701 matching lines @@
   // and potentially child frame views.
   SetNeedsCompositingUpdate(GetLayoutViewItem(), kCompositingUpdateRebuildTree);
 
   FrameViewBase::SetParentVisible(visible);
 
   if (!IsSelfVisible())
     return;
 
   for (const auto& child : children_)
     child->SetParentVisible(visible);
+
+  for (const auto& plugin : plugins_)
+    plugin->SetParentVisible(visible);
 }
 
 void FrameView::Show() {
   if (!IsSelfVisible()) {
     SetSelfVisible(true);
     if (ScrollingCoordinator* scrolling_coordinator =
             this->GetScrollingCoordinator())
       scrolling_coordinator->FrameViewVisibilityDidChange();
     SetNeedsCompositingUpdate(GetLayoutViewItem(),
                               kCompositingUpdateRebuildTree);
     UpdateParentScrollableAreaSet();
     if (RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled() &&
         !RuntimeEnabledFeatures::rootLayerScrollingEnabled()) {
       // The existance of scrolling properties depends on visibility through
       // isScrollable() so ensure properties are updated if visibility changes.
       SetNeedsPaintPropertyUpdate();
     }
     if (IsParentVisible()) {
       for (const auto& child : children_)
         child->SetParentVisible(true);
+
+      for (const auto& plugin : plugins_)
+        plugin->SetParentVisible(true);
     }
   }
 
   FrameViewBase::Show();
 }
 
 void FrameView::Hide() {
   if (IsSelfVisible()) {
     if (IsParentVisible()) {
       for (const auto& child : children_)
         child->SetParentVisible(false);
+
+      for (const auto& plugin : plugins_)
+        plugin->SetParentVisible(false);
     }
     SetSelfVisible(false);
     if (ScrollingCoordinator* scrolling_coordinator =
             this->GetScrollingCoordinator())
       scrolling_coordinator->FrameViewVisibilityDidChange();
     SetNeedsCompositingUpdate(GetLayoutViewItem(),
                               kCompositingUpdateRebuildTree);
     UpdateParentScrollableAreaSet();
     if (RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled() &&
         !RuntimeEnabledFeatures::rootLayerScrollingEnabled()) {
@@ skipping 559 matching lines @@
 void FrameView::SetAnimationHost(
     std::unique_ptr<CompositorAnimationHost> host) {
   animation_host_ = std::move(host);
 }
 
 LayoutUnit FrameView::CaretWidth() const {
   return LayoutUnit(GetHostWindow()->WindowToViewportScalar(1));
 }
 
 }  // namespace blink