Invalidate first line display item clients when first line style changes

third_party/WebKit/Source/core/layout/line/InlineFlowBox.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 1262 matching lines @@
                 ASSERT(userData);
                 (*customReverseImplementation)(userData, first, last);
             } else {
                 std::reverse(first, last);
             }
         }
         ++minLevel;
     }
 }
 
+void InlineFlowBox::invalidateDisplayItemClientsOfFirstLine()
+{
+    ASSERT(isFirstLineStyle());
+    layoutObject().invalidateDisplayItemClient(*this);
+    for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
+        if (!curr->isFirstLineStyle())
+            break;
+        if (curr->isInlineFlowBox())
+            toInlineFlowBox(curr)->invalidateDisplayItemClientsOfFirstLine();
+        else
+            curr->layoutObject().invalidateDisplayItemClient(*curr);
+    }
+}
+
 const char* InlineFlowBox::boxName() const
 {
     return "InlineFlowBox";
 }
 
 #ifndef NDEBUG
 
 void InlineFlowBox::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const LayoutObject* obj, int depth) const
 {
     InlineBox::showLineTreeAndMark(markedBox1, markedLabel1, markedBox2, markedLabel2, obj, depth);
@@ skipping 14 matching lines @@
         ASSERT(child->prevOnLine() == prev);
         prev = child;
     }
     ASSERT(prev == m_lastChild);
 #endif
 }
 
 #endif
 
 } // namespace blink