A video tag should not highlight the play button and slider thumb when preload is disabled and not …

third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp

 /*
  * Copyright (C) 2009 Apple Inc.
  * Copyright (C) 2009 Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 56 matching lines @@
   if (Image* image = Image::LoadPlatformResource(name).LeakRef()) {
     g_media_control_image_map->Set(name, image);
     return image;
   }
   NOTREACHED();
   return 0;
 }
 
 static bool HasSource(const HTMLMediaElement* media_element) {
   return media_element->getNetworkState() != HTMLMediaElement::kNetworkEmpty &&
-         media_element->getNetworkState() != HTMLMediaElement::kNetworkNoSource;
+         media_element->getNetworkState() !=
+             HTMLMediaElement::kNetworkNoSource &&
+         media_element->getNetworkState() != HTMLMediaElement::kNetworkIdle;
 }
 
 static FloatRect AdjustRectForPadding(IntRect rect,
                                       const LayoutObject* object) {
   FloatRect adjusted_rect(rect);
 
   if (!object)
     return adjusted_rect;
 
   // TODO(liberato): make this more elegant, crbug.com/598861 .
@@ skipping 535 matching lines @@
 void MediaControlsPainter::AdjustMediaSliderThumbSize(ComputedStyle& style) {
   const float zoom_level = style.EffectiveZoom();
 
   style.SetWidth(Length(
       static_cast<int>(kMediaSliderThumbTouchWidth * zoom_level), kFixed));
   style.SetHeight(Length(
       static_cast<int>(kMediaSliderThumbTouchHeight * zoom_level), kFixed));
 }
 
 }  // namespace blink