Revert of Remove unneeded calls to plugin.SetParentVisible.

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 e91021b0f2cc28326342d446b8a032bc96911370..a7254f82cf1954e4841113cd7d203798305245b5 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -4719,6 +4719,9 @@
 
   for (const auto& child : children_)
     child->SetParentVisible(visible);
+
+  for (const auto& plugin : plugins_)
+    plugin->SetParentVisible(visible);
 }
 
 void FrameView::Show() {
@@ -4739,6 +4742,9 @@
     if (IsParentVisible()) {
       for (const auto& child : children_)
         child->SetParentVisible(true);
+
+      for (const auto& plugin : plugins_)
+        plugin->SetParentVisible(true);
     }
   }
 
@@ -4750,6 +4756,9 @@
     if (IsParentVisible()) {
       for (const auto& child : children_)
         child->SetParentVisible(false);
+
+      for (const auto& plugin : plugins_)
+        plugin->SetParentVisible(false);
     }
     SetSelfVisible(false);
     if (ScrollingCoordinator* scrolling_coordinator =