Add UseCounter for flex items having intinsic aspect ratios

Source/core/rendering/RenderFlexibleBox.cpp

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/rendering/RenderFlexibleBox.h"
 
+#include "core/frame/UseCounter.h"
 #include "core/rendering/FastTextAutosizer.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderView.h"
 #include "platform/LengthFunctions.h"
 #include "wtf/MathExtras.h"
 #include <limits>
 
 namespace WebCore {
 
 struct RenderFlexibleBox::LineContext {
@@ skipping 561 matching lines @@
 
 bool RenderFlexibleBox::childPreferredMainAxisContentExtentRequiresLayout(RenderBox* child, bool hasInfiniteLineLength) const
 {
     return preferredMainAxisExtentDependsOnLayout(flexBasisForChild(child), hasInfiniteLineLength) && hasOrthogonalFlow(child);
 }
 
 LayoutUnit RenderFlexibleBox::preferredMainAxisContentExtentForChild(RenderBox* child, bool hasInfiniteLineLength, bool relayoutChildren)
 {
     child->clearOverrideSize();
 
+    if (child->style()->hasAspectRatio() || child->isImage() || child->isVideo() || child->isCanvas())
+        UseCounter::count(document(), UseCounter::AspectRatioFlexItem);
+
     Length flexBasis = flexBasisForChild(child);
     if (preferredMainAxisExtentDependsOnLayout(flexBasis, hasInfiniteLineLength)) {
         LayoutUnit mainAxisExtent;
         if (hasOrthogonalFlow(child)) {
             if (child->needsLayout() || relayoutChildren) {
                 m_intrinsicSizeAlongMainAxis.remove(child);
                 child->forceChildLayout();
                 m_intrinsicSizeAlongMainAxis.set(child, child->logicalHeight());
             }
             ASSERT(m_intrinsicSizeAlongMainAxis.contains(child));
@@ skipping 772 matching lines @@
             ASSERT(child);
             LayoutUnit lineCrossAxisExtent = lineContexts[lineNumber].crossAxisExtent;
             LayoutUnit originalOffset = lineContexts[lineNumber].crossAxisOffset - crossAxisStartEdge;
             LayoutUnit newOffset = contentExtent - originalOffset - lineCrossAxisExtent;
             adjustAlignmentForChild(child, newOffset - originalOffset);
         }
     }
 }
 
 }