Audit the use of updateStyleAndLayoutIgnorePendingStylesheets in SearchBuffer.

third_party/WebKit/Source/web/TextFinder.cpp

Index: third_party/WebKit/Source/web/TextFinder.cpp
diff --git a/third_party/WebKit/Source/web/TextFinder.cpp b/third_party/WebKit/Source/web/TextFinder.cpp
index 8cd0d33717f0d66394748998066a36de241fc416..e7e6665ba3449cab54ea25f50a1b879e21ff5ea5 100644
--- a/third_party/WebKit/Source/web/TextFinder.cpp
+++ b/third_party/WebKit/Source/web/TextFinder.cpp
@@ -300,6 +300,10 @@ void TextFinder::scopeStringMatches(int identifier, const WebString& searchText,
             return;
     }
 
+    // TODO(dglazkov): The use of updateStyleAndLayoutIgnorePendingStylesheets needs to be audited.
+    // see http://crbug.com/590369 for more details.
+    searchStart.document()->updateStyleAndLayoutIgnorePendingStylesheets();

[dglazkov, 2016/07/13 22:40:11]

Goes up to WebLocalFrameImpl::scopeStringMatches and
to TextFinder::callScopeStringMatches, last one with a stern comment on how we
should not be flushing pipeline on a timeout.

+
     // This timeout controls how long we scope before releasing control. This
     // value does not prevent us from running for longer than this, but it is
     // periodically checked to see if we have exceeded our allocated time.