New media playback UI.

Source/core/layout/LayoutMedia.cpp

Index: Source/core/layout/LayoutMedia.cpp
diff --git a/Source/core/layout/LayoutMedia.cpp b/Source/core/layout/LayoutMedia.cpp
index 4252f34ed465c03f4221acd4226e8008fc5c8436..4b41c540a88988440e9181a71c7d7a21b212ebc5 100644
--- a/Source/core/layout/LayoutMedia.cpp
+++ b/Source/core/layout/LayoutMedia.cpp
@@ -28,6 +28,7 @@
 #include "core/layout/LayoutMedia.h"
 
 #include "core/html/HTMLMediaElement.h"
+#include "core/html/shadow/MediaControls.h"
 #include "core/layout/LayoutView.h"
 
 namespace blink {
@@ -87,6 +88,10 @@ void LayoutMedia::layout()
     }
 
     clearNeedsLayout();
+
+    // Notify our MediaControls that a layout has happened.
+    if (mediaElement() && mediaElement()->mediaControls())

[fs, 2015/07/09 09:31:17]

if (newSize.width() != oldSize.width() && ...

or this will notify on any layout. (clientWidth as used elsewhere will be
pixel-snapped though.)

[liberato (no reviews please), 2015/07/09 22:35:35]

Done.

+        mediaElement()->mediaControls()->notifyPanelWidthChanged(newSize.width().toInt());
 }
 
 bool LayoutMedia::isChildAllowed(LayoutObject* child, const ComputedStyle&) const