Hide overlay play button if it can't be shown without clipping

third_party/WebKit/Source/core/layout/LayoutMedia.cpp

Index: third_party/WebKit/Source/core/layout/LayoutMedia.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutMedia.cpp b/third_party/WebKit/Source/core/layout/LayoutMedia.cpp
index ae50013ff9ecb3b817429f21eccb38bf6018c019..59f699bdabe82f41bbcb9f7e49e3f4b5448fc72c 100644
--- a/third_party/WebKit/Source/core/layout/LayoutMedia.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutMedia.cpp
@@ -54,8 +54,6 @@ void LayoutMedia::layout() {
 
   LayoutState state(*this);
 
-  Optional<LayoutUnit> newPanelWidth;
-
 // Iterate the children in reverse order so that the media controls are laid
 // out before the text track container. This is to ensure that the text
 // track rendering has an up-to-date position of the media controls for
@@ -83,7 +81,6 @@ void LayoutMedia::layout() {
     LayoutUnit width = newRect.width();
     if (child->node()->isMediaControls()) {
       width = computePanelWidth(newRect);
-      newPanelWidth = width;
     }
 
     LayoutBox* layoutBox = toLayoutBox(child);
@@ -97,18 +94,6 @@ void LayoutMedia::layout() {
   }
 
   clearNeedsLayout();
-
-  // Notify our MediaControls that a layout has happened.
-  if (mediaElement() && mediaElement()->mediaControls() &&
-      newPanelWidth.has_value()) {
-    if (!m_lastReportedPanelWidth.has_value() ||
-        m_lastReportedPanelWidth.value() != newPanelWidth.value()) {
-      mediaElement()->mediaControls()->notifyPanelWidthChanged(
-          newPanelWidth.value());
-      // Store the last value we reported, so we know if it has changed.
-      m_lastReportedPanelWidth = newPanelWidth.value();
-    }
-  }
 }
 
 bool LayoutMedia::isChildAllowed(LayoutObject* child,