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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/204880">204880</a></dd>
<dt>Author</dt> <dd>zalan@apple.com</dd>
<dt>Date</dt> <dd>2016-08-23 19:23:19 -0700 (Tue, 23 Aug 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>ASSERTION FAILED: !view().layoutStateEnabled() || style().styleType() == FIRST_LETTER in WebCore::RenderInline::clippedOverflowRectForRepaint
https://bugs.webkit.org/show_bug.cgi?id=155363
<rdar://problem/27720434>
Reviewed by David Hyatt.
Source/WebCore:
Loosen ASSERT to include calls when the inline has a self painting layer. It's valid to end up here during layout when
the layer's composite state changes.
Test: fast/layers/assert-on-self-painting-inline-with-scrolling.html
* rendering/RenderInline.cpp:
(WebCore::RenderInline::clippedOverflowRectForRepaint):
LayoutTests:
* fast/layers/assert-on-self-painting-inline-with-scrolling-expected.txt: Added.
* fast/layers/assert-on-self-painting-inline-with-scrolling.html: Added.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderInlinecpp">trunk/Source/WebCore/rendering/RenderInline.cpp</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsfastlayersassertonselfpaintinginlinewithscrollingexpectedtxt">trunk/LayoutTests/fast/layers/assert-on-self-painting-inline-with-scrolling-expected.txt</a></li>
<li><a href="#trunkLayoutTestsfastlayersassertonselfpaintinginlinewithscrollinghtml">trunk/LayoutTests/fast/layers/assert-on-self-painting-inline-with-scrolling.html</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (204879 => 204880)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2016-08-24 02:19:50 UTC (rev 204879)
+++ trunk/LayoutTests/ChangeLog        2016-08-24 02:23:19 UTC (rev 204880)
</span><span class="lines">@@ -1,3 +1,14 @@
</span><ins>+2016-08-23 Zalan Bujtas <zalan@apple.com>
+
+ ASSERTION FAILED: !view().layoutStateEnabled() || style().styleType() == FIRST_LETTER in WebCore::RenderInline::clippedOverflowRectForRepaint
+ https://bugs.webkit.org/show_bug.cgi?id=155363
+ <rdar://problem/27720434>
+
+ Reviewed by David Hyatt.
+
+ * fast/layers/assert-on-self-painting-inline-with-scrolling-expected.txt: Added.
+ * fast/layers/assert-on-self-painting-inline-with-scrolling.html: Added.
+
</ins><span class="cx"> 2016-08-23 Chris Dumez <cdumez@apple.com>
</span><span class="cx">
</span><span class="cx"> Add support for CanvasRenderingContext2D.resetTransform()
</span></span></pre></div>
<a id="trunkLayoutTestsfastlayersassertonselfpaintinginlinewithscrollingexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/layers/assert-on-self-painting-inline-with-scrolling-expected.txt (0 => 204880)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/layers/assert-on-self-painting-inline-with-scrolling-expected.txt         (rev 0)
+++ trunk/LayoutTests/fast/layers/assert-on-self-painting-inline-with-scrolling-expected.txt        2016-08-24 02:23:19 UTC (rev 204880)
</span><span class="lines">@@ -0,0 +1 @@
</span><ins>+PASS if no assert in debug.
</ins></span></pre></div>
<a id="trunkLayoutTestsfastlayersassertonselfpaintinginlinewithscrollinghtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/layers/assert-on-self-painting-inline-with-scrolling.html (0 => 204880)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/layers/assert-on-self-painting-inline-with-scrolling.html         (rev 0)
+++ trunk/LayoutTests/fast/layers/assert-on-self-painting-inline-with-scrolling.html        2016-08-24 02:23:19 UTC (rev 204880)
</span><span class="lines">@@ -0,0 +1,25 @@
</span><ins>+<!DOCTYPE html>
+<html>
+<head>
+<title>This tests that inline does not assert when its composite state changes.</title>
+<script>
+if (window.testRunner)
+ testRunner.dumpAsText();
+</script>
+
+<style>
+ html, body {
+ overflow-x: scroll;
+ will-change: transform;
+}
+
+span {
+ mix-blend-mode: exclusion;
+}
+</style>
+</head>
+<body>
+PASS if no assert in debug.
+<span class="class_0"></span>
+</body>
+</html>
</ins></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (204879 => 204880)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2016-08-24 02:19:50 UTC (rev 204879)
+++ trunk/Source/WebCore/ChangeLog        2016-08-24 02:23:19 UTC (rev 204880)
</span><span class="lines">@@ -1,3 +1,19 @@
</span><ins>+2016-08-23 Zalan Bujtas <zalan@apple.com>
+
+ ASSERTION FAILED: !view().layoutStateEnabled() || style().styleType() == FIRST_LETTER in WebCore::RenderInline::clippedOverflowRectForRepaint
+ https://bugs.webkit.org/show_bug.cgi?id=155363
+ <rdar://problem/27720434>
+
+ Reviewed by David Hyatt.
+
+ Loosen ASSERT to include calls when the inline has a self painting layer. It's valid to end up here during layout when
+ the layer's composite state changes.
+
+ Test: fast/layers/assert-on-self-painting-inline-with-scrolling.html
+
+ * rendering/RenderInline.cpp:
+ (WebCore::RenderInline::clippedOverflowRectForRepaint):
+
</ins><span class="cx"> 2016-08-23 Anders Carlsson <andersca@apple.com>
</span><span class="cx">
</span><span class="cx"> Create a phony WebKitLegacy framework that the WebCoreTestSupport dylib can find
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderInlinecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderInline.cpp (204879 => 204880)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderInline.cpp        2016-08-24 02:19:50 UTC (rev 204879)
+++ trunk/Source/WebCore/rendering/RenderInline.cpp        2016-08-24 02:23:19 UTC (rev 204880)
</span><span class="lines">@@ -1206,7 +1206,7 @@
</span><span class="cx"> LayoutRect RenderInline::clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const
</span><span class="cx"> {
</span><span class="cx"> // Only first-letter renderers are allowed in here during layout. They mutate the tree triggering repaints.
</span><del>- ASSERT(!view().layoutStateEnabled() || style().styleType() == FIRST_LETTER);
</del><ins>+ ASSERT(!view().layoutStateEnabled() || style().styleType() == FIRST_LETTER || hasSelfPaintingLayer());
</ins><span class="cx">
</span><span class="cx"> if (!firstLineBoxIncludingCulling() && !continuation())
</span><span class="cx"> return LayoutRect();
</span></span></pre>
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