New media playback UI.

Source/core/layout/LayoutObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 18 matching lines @@
 
 #include "core/HTMLNames.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/AXObjectCache.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/dom/StyleEngine.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/EditingBoundary.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/htmlediting.h"
+#include "core/events/Event.h"
+#include "core/events/EventQueue.h"
 #include "core/fetch/ResourceLoadPriorityOptimizer.h"
 #include "core/fetch/ResourceLoader.h"
 #include "core/frame/DeprecatedScheduleStyleRecalcDuringLayout.h"
 #include "core/frame/EventHandlerRegistry.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/frame/UseCounter.h"
 #include "core/html/HTMLAnchorElement.h"
 #include "core/html/HTMLElement.h"
@@ skipping 1766 matching lines @@
 
     if (diff.transformChanged() && !needsLayout()) {
         if (LayoutBlock* container = containingBlock())
             container->setNeedsOverflowRecalcAfterStyleChange();
     }
 
     if (updatedDiff.needsPaintInvalidationLayer())
         setShouldDoFullPaintInvalidationIncludingNonCompositingDescendants();
     else if (diff.needsPaintInvalidationObject() || updatedDiff.needsPaintInvalidationObject())
         setShouldDoFullPaintInvalidation();
+
+    // Dispatch a resize event to our owning node if requested.
+    if (m_bitfields.sendResizeEvent() && m_node) {

[fs, 2015/07/08 09:31:00]

I think it would be better just put this mechanism within MediaControls (using a
zero-delay Timer). The actual size-changes for MediaControls will be constrained
to the setWidth/setHeight calls in LayoutMedia::layout.

[liberato (no reviews please), 2015/07/09 12:10:56]

thanks!  I added a call to LayoutMedia::layout() to notify MediaControls. 
MediaControl sets a zero-delay timer, as you suggest.

+        RefPtrWillBeRawPtr<Event> event = Event::create(EventTypeNames::resize);
+        event->setTarget(m_node);
+        LocalDOMWindow* win = document().executingWindow();
+        if (win)
+            win->eventQueue()->enqueueEvent(event);
+    }
 }
 
 static inline bool layoutObjectHasBackground(const LayoutObject* layoutObject)
 {
     return layoutObject && layoutObject->hasBackground();
 }
 
 void LayoutObject::styleWillChange(StyleDifference diff, const ComputedStyle& newStyle)
 {
     if (m_style) {
@@ skipping 1454 matching lines @@
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     } else {
         fprintf(stderr, "Cannot showLayoutTree. Root is (nil)\n");
     }
 }
 
 #endif