Supports the invisible underline for native input fields.

ui/gfx/render_text.h

 // Copyright (c) 2012 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.
 
 #ifndef UI_GFX_RENDER_TEXT_H_
 #define UI_GFX_RENDER_TEXT_H_
 
 #include <algorithm>
 #include <cstring>
 #include <string>
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   // Select the entire text range. If |reversed| is true, the range will end at
   // the logical beginning of the text; this generally shows the leading portion
   // of text that overflows its display area.
   void SelectAll(bool reversed);
 
   // Selects the word at the current cursor position. If there is a non-empty
   // selection, the selection bounds are extended to their nearest word
   // boundaries.
   void SelectWord();
 
-  const Range& GetCompositionRange() const;
   void SetCompositionRange(const Range& composition_range);
 
   // Set the text color over the entire text or a logical character range.
   // The |range| should be valid, non-reversed, and within [0, text().length()].
   void SetColor(SkColor value);
   void ApplyColor(SkColor value, const Range& range);
 
   // Set the baseline style over the entire text or a logical character range.
   // The |range| should be valid, non-reversed, and within [0, text().length()].
   void SetBaselineStyle(BaselineStyle value);
@@ skipping 450 matching lines @@
   // Lines computed by EnsureLayout. These should be invalidated upon
   // OnLayoutTextAttributeChanged and OnDisplayTextAttributeChanged calls.
   std::vector<internal::Line> lines_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderText);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RENDER_TEXT_H_