Always aligns text at vertically center (Textfield, Label).

ui/gfx/text_constants.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_TEXT_CONSTANTS_H_
 #define UI_GFX_TEXT_CONSTANTS_H_
 
 namespace gfx {
 
 // TODO(msw): Distinguish between logical character stops and glyph stops?
@@ skipping 10 matching lines @@
 // Horizontal text alignment modes.
 enum HorizontalAlignment {
   // Align the text's left edge with that of its display area.
   ALIGN_LEFT = 0,
   // Align the text's center with that of its display area.
   ALIGN_CENTER,
   // Align the text's right edge with that of its display area.
   ALIGN_RIGHT,
 };
 
-// Vertical text alignment modes.
-enum VerticalAlignment {
-  // Align the text's top edge with that of its display area.
-  ALIGN_TOP = 0,
-  // Align the text's center with that of its display area.
-  ALIGN_VCENTER,
-  // Align the text's bottom edge with that of its display area.
-  ALIGN_BOTTOM,
-};
-
 // The directionality modes used to determine the base text direction.
 enum DirectionalityMode {
   // Use the first strong character's direction.
   DIRECTIONALITY_FROM_TEXT = 0,
   // Use the UI locale's text reading direction.
   DIRECTIONALITY_FROM_UI,
   // Use LTR regardless of content or UI locale.
   DIRECTIONALITY_FORCE_LTR,
   // Use RTL regardless of content or UI locale.
   DIRECTIONALITY_FORCE_RTL,
 };
 
 // Text styles and adornments.
 // TODO(msw): Merge with gfx::Font::FontStyle.
 enum TextStyle {
   BOLD = 0,
   ITALIC,
   STRIKE,
   DIAGONAL_STRIKE,
   UNDERLINE,
   NUM_TEXT_STYLES,
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_TEXT_CONSTANTS_H_