Inline flexbox width is wrongly calculated when wrapping vertically

LayoutTests/css3/flexbox/multiline-shrink-to-fit.html

Index: LayoutTests/css3/flexbox/multiline-shrink-to-fit.html
diff --git a/LayoutTests/css3/flexbox/multiline-shrink-to-fit.html b/LayoutTests/css3/flexbox/multiline-shrink-to-fit.html
index 81fd06db1fdc6d8c0409eee0307ccb32cfcdc3fe..7e3209c4655f4d1ea278e2f6d9b46d439405d407 100644
--- a/LayoutTests/css3/flexbox/multiline-shrink-to-fit.html
+++ b/LayoutTests/css3/flexbox/multiline-shrink-to-fit.html
@@ -35,7 +35,7 @@
   <div style="width: 100px; height: 10px"></div>
   <div style="width: 100px; height: 20px"></div>
 </div>
-<p style="clear:left">The grey background should be 400px wide.</p>
+<p style="clear:left">The grey background should be 100px wide.</p>
 
 <div class="flexbox" style="height: 30px">
   <div style="width: 100px; height: 20px"></div>
@@ -43,7 +43,7 @@
   <div style="width: 100px; height: 10px"></div>
   <div style="width: 100px; height: 20px"></div>
 </div>
-<p style="clear:left">The grey background should be 400px wide.</p>
+<p style="clear:left">The grey background should be 200px wide.</p>
 
 <div style="width: 150px">
 <div class="flexbox">
@@ -53,7 +53,7 @@
   <div style="width: 100px; height: 20px"></div>
 </div>
 </div>
-<p style="clear:left">The grey background should be 150px wide.</p>
+<p style="clear:left">The grey background should be 100px wide.</p>
 
 <div style="width: 150px">
 <div class="flexbox" style="height: 35px">
@@ -63,7 +63,7 @@
   <div style="width: 100px; height: 20px"></div>
 </div>
 </div>
-<p style="clear:left">The grey background should be 150px wide and 5px should
+<p style="clear:left">The grey background should be 200px wide and 5px should
 stick out the bottom.</p>
 
 </body>