Removed parameter that is always true.

Source/core/rendering/InlineTextBox.cpp

Index: Source/core/rendering/InlineTextBox.cpp
diff --git a/Source/core/rendering/InlineTextBox.cpp b/Source/core/rendering/InlineTextBox.cpp
index a28b0d4d71c23401efd9c990bf81fd919f4ac800..147733f6e5e9c2866b1972466acd9e7d7a515d74 100644
--- a/Source/core/rendering/InlineTextBox.cpp
+++ b/Source/core/rendering/InlineTextBox.cpp
@@ -78,13 +78,11 @@ void InlineTextBox::destroy()
     InlineBox::destroy();
 }
 
-void InlineTextBox::markDirty(bool dirty)
+void InlineTextBox::markDirty()
 {
-    if (dirty) {
-        m_len = 0;
-        m_start = 0;
-    }
-    InlineBox::markDirty(dirty);
+    m_len = 0;
+    m_start = 0;
+    InlineBox::markDirty();
 }
 
 LayoutRect InlineTextBox::logicalOverflowRect() const