<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>145568</bug_id>
          
          <creation_ts>2015-06-02 13:41:30 -0700</creation_ts>
          <short_desc>[CSS Box Alignment] Style changes cause excessive invalidations.</short_desc>
          <delta_ts>2015-06-02 13:43:58 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Layout and Rendering</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          <blocked>91512</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Javier Fernandez">jfernandez</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>jfernandez</cc>
    
    <cc>rego</cc>
    
    <cc>svillar</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1098882</commentid>
    <comment_count>0</comment_count>
    <who name="Javier Fernandez">jfernandez</who>
    <bug_when>2015-06-02 13:41:30 -0700</bug_when>
    <thetext>The Layout Tests located at fast/repaint/{justify, align}-items-* cause an excessive number of unrelated paint invalidations; this is clearly appreciated in the tests expectations. 

After some initial investigation, it seems that the root cause is that changes on those properties cause a style Reattach, so children&apos;s xxx-self properties with auto values can be computed again using the new xxx-items value.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>