Set plugin focus by implementing HTMLPlugInElement::SetFocused.

third_party/WebKit/Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
@@ skipping 4069 matching lines @@
       old_focused_element->DispatchFocusOutEvent(EventTypeNames::DOMFocusOut,
                                                  new_focused_element,
                                                  params.source_capabilities);
 
       if (focused_element_) {
         // handler shifted focus
         focus_change_blocked = true;
         new_focused_element = nullptr;
       }
     }
-
-    if (IsHTMLPlugInElement(old_focused_element)) {
-      if (PluginView* plugin =
-              ToHTMLPlugInElement(old_focused_element)->Plugin())
-        plugin->SetFocused(false, params.type);
-    }
   }
 
   if (new_focused_element)
     UpdateStyleAndLayoutTreeForNode(new_focused_element);
   if (new_focused_element && new_focused_element->IsFocusable()) {
     if (IsRootEditableElement(*new_focused_element) &&
         !AcceptsEditingFocus(*new_focused_element)) {
       // delegate blocks focus change
       focus_change_blocked = true;
       goto SetFocusedElementDone;
@@ skipping 44 matching lines @@
 
       if (focused_element_ != new_focused_element) {
         // handler shifted focus
         focus_change_blocked = true;
         goto SetFocusedElementDone;
       }
     }
 
     if (IsRootEditableElement(*focused_element_))
       GetFrame()->GetSpellChecker().DidBeginEditing(focused_element_.Get());
-
-    if (IsHTMLPlugInElement(focused_element_)) {
-      if (PluginView* plugin = ToHTMLPlugInElement(focused_element_)->Plugin())
-        plugin->SetFocused(true, params.type);
-    }
   }
 
   if (!focus_change_blocked && focused_element_) {
     // Create the AXObject cache in a focus change because Chromium relies on
     // it.
     if (AXObjectCache* cache = AxObjectCache())
       cache->HandleFocusedUIElementChanged(old_focused_element,
                                            new_focused_element);
   }
 
@@ skipping 2485 matching lines @@
 }
 
 void showLiveDocumentInstances() {
   WeakDocumentSet& set = liveDocumentSet();
   fprintf(stderr, "There are %u documents currently alive:\n", set.size());
   for (blink::Document* document : set)
     fprintf(stderr, "- Document %p URL: %s\n", document,
             document->Url().GetString().Utf8().Data());
 }
 #endif