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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/165134">165134</a></dd>
<dt>Author</dt> <dd>matthew_hanson@apple.com</dd>
<dt>Date</dt> <dd>2014-03-05 15:16:47 -0800 (Wed, 05 Mar 2014)</dd>
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<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/159970">r159970</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari53775branchSourceWebCoreChangeLog">branches/safari-537.75-branch/Source/WebCore/ChangeLog</a></li>
<li><a href="#branchessafari53775branchSourceWebCorehistoryPageCachecpp">branches/safari-537.75-branch/Source/WebCore/history/PageCache.cpp</a></li>
</ul>

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<h3>Diff</h3>
<a id="branchessafari53775branchSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-537.75-branch/Source/WebCore/ChangeLog (165133 => 165134)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-537.75-branch/Source/WebCore/ChangeLog        2014-03-05 22:59:18 UTC (rev 165133)
+++ branches/safari-537.75-branch/Source/WebCore/ChangeLog        2014-03-05 23:16:47 UTC (rev 165134)
</span><span class="lines">@@ -1,5 +1,26 @@
</span><span class="cx"> 2014-03-05  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Merge r159970.
+
+    2013-12-02  Brady Eidson  &lt;beidson@apple.com&gt;
+
+            Add more CachedPage null checks
+            https://bugs.webkit.org/show_bug.cgi?id=125106
+
+            Reviewed by Sam Weinig.
+
+            Only some functions in PageCache.cpp null-check the CachedPages in HistoryItems.
+
+            Every part that manipulates the CachedPage should.
+
+            * history/PageCache.cpp:
+            (WebCore::PageCache::markPagesForVistedLinkStyleRecalc):
+            (WebCore::PageCache::markPagesForFullStyleRecalc):
+            (WebCore::PageCache::markPagesForDeviceScaleChanged):
+            (WebCore::PageCache::markPagesForCaptionPreferencesChanged):
+
+2014-03-05  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
+
</ins><span class="cx">         Merge r159986.
</span><span class="cx"> 
</span><span class="cx">     2013-12-02  Brady Eidson  &lt;beidson@apple.com&gt; 
</span></span></pre></div>
<a id="branchessafari53775branchSourceWebCorehistoryPageCachecpp"></a>
<div class="modfile"><h4>Modified: branches/safari-537.75-branch/Source/WebCore/history/PageCache.cpp (165133 => 165134)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-537.75-branch/Source/WebCore/history/PageCache.cpp        2014-03-05 22:59:18 UTC (rev 165133)
+++ branches/safari-537.75-branch/Source/WebCore/history/PageCache.cpp        2014-03-05 23:16:47 UTC (rev 165134)
</span><span class="lines">@@ -391,8 +391,10 @@
</span><span class="cx"> 
</span><span class="cx"> void PageCache::markPagesForVistedLinkStyleRecalc()
</span><span class="cx"> {
</span><del>-    for (HistoryItem* current = m_head; current; current = current-&gt;m_next)
-        current-&gt;m_cachedPage-&gt;markForVistedLinkStyleRecalc();
</del><ins>+    for (HistoryItem* current = m_head; current; current = current-&gt;m_next) {
+        if (current-&gt;m_cachedPage)
+            current-&gt;m_cachedPage-&gt;markForVistedLinkStyleRecalc();
+    }
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void PageCache::markPagesForFullStyleRecalc(Page* page)
</span><span class="lines">@@ -401,7 +403,7 @@
</span><span class="cx"> 
</span><span class="cx">     for (HistoryItem* current = m_head; current; current = current-&gt;m_next) {
</span><span class="cx">         CachedPage* cachedPage = current-&gt;m_cachedPage.get();
</span><del>-        if (cachedPage-&gt;cachedMainFrame()-&gt;view()-&gt;frame() == mainFrame)
</del><ins>+        if (cachedPage &amp;&amp; cachedPage-&gt;cachedMainFrame()-&gt;view()-&gt;frame() == mainFrame)
</ins><span class="cx">             cachedPage-&gt;markForFullStyleRecalc();
</span><span class="cx">     }
</span><span class="cx"> }
</span><span class="lines">@@ -414,7 +416,7 @@
</span><span class="cx"> 
</span><span class="cx">     for (HistoryItem* current = m_head; current; current = current-&gt;m_next) {
</span><span class="cx">         CachedPage* cachedPage = current-&gt;m_cachedPage.get();
</span><del>-        if (cachedPage-&gt;cachedMainFrame()-&gt;view()-&gt;frame() == mainFrame)
</del><ins>+        if (cachedPage &amp;&amp; cachedPage-&gt;cachedMainFrame()-&gt;view()-&gt;frame() == mainFrame)
</ins><span class="cx">             cachedPage-&gt;markForDeviceScaleChanged();
</span><span class="cx">     }
</span><span class="cx"> }
</span><span class="lines">@@ -423,8 +425,10 @@
</span><span class="cx"> #if ENABLE(VIDEO_TRACK)
</span><span class="cx"> void PageCache::markPagesForCaptionPreferencesChanged()
</span><span class="cx"> {
</span><del>-    for (HistoryItem* current = m_head; current; current = current-&gt;m_next)
-        current-&gt;m_cachedPage-&gt;markForCaptionPreferencesChanged();
</del><ins>+    for (HistoryItem* current = m_head; current; current = current-&gt;m_next) {
+        if (current-&gt;m_cachedPage)
+            current-&gt;m_cachedPage-&gt;markForCaptionPreferencesChanged();
+    }
</ins><span class="cx"> }
</span><span class="cx"> #endif
</span><span class="cx"> 
</span></span></pre>
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