Avoid style clobbering in setCompositionFromExistingText. (2nd land)

Source/core/editing/CompositionUnderlineRangeFilter.cpp

Index: Source/core/editing/CompositionUnderlineRangeFilter.cpp
diff --git a/Source/core/editing/CompositionUnderlineRangeFilter.cpp b/Source/core/editing/CompositionUnderlineRangeFilter.cpp
deleted file mode 100644
index 083b35bd8847b9fb37f34f1625d75b72783d733c..0000000000000000000000000000000000000000
--- a/Source/core/editing/CompositionUnderlineRangeFilter.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "config.h"
-#include "core/editing/CompositionUnderlineRangeFilter.h"
-
-namespace blink {
-
-CompositionUnderlineRangeFilter::CompositionUnderlineRangeFilter(const Vector<CompositionUnderline>& underlines, size_t indexLo, size_t indexHi)
-    : m_underlines(underlines)
-    , m_indexLo(indexLo)
-    , m_indexHi(indexHi)
-    , m_theEnd(this, kNotFound) { }
-
-size_t CompositionUnderlineRangeFilter::seekValidIndex(size_t index)
-{
-    if (index == kNotFound)
-        return kNotFound;
-
-    size_t numUnderlines = m_underlines.size();
-    while (index < numUnderlines) {
-        const CompositionUnderline& underline = m_underlines[index];
-
-        if (underline.endOffset <= m_indexLo) {
-            // |underline| lies  before the query range: keep on looking.
-            ++index;
-        } else if (underline.startOffset <= m_indexHi) {
-            // |underline| intersects with the query range: valid, so return.
-            return index;
-        } else {
-            // |underline| is completely after the query range: bail.
-            break;
-        }
-    }
-    return kNotFound;
-}
-
-} // namespace blink