Fixes vertical alignment of RenderText.

ui/gfx/platform_font_fake.h

+// Copyright (c) 2013 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_PLATFORM_FONT_FAKE_H_
+#define UI_GFX_PLATFORM_FONT_FAKE_H_
+
+#include "ui/gfx/platform_font.h"
+
+namespace gfx {
+
+// Fake font class for unit tests.
+class PlatformFontFake : public PlatformFont {
+ public:
+  PlatformFontFake();
+  PlatformFontFake(const std::string& font_name, int font_size);
+
+  // Overridden from PlatformFont:
+  virtual Font DeriveFont(int size_delta, int style) const OVERRIDE;
+  virtual int GetHeight() const OVERRIDE;
+  virtual int GetBaseline() const OVERRIDE;
+  virtual int GetAverageCharacterWidth() const OVERRIDE;
+  virtual int GetStringWidth(const base::string16& text) const OVERRIDE;
+  virtual int GetExpectedTextWidth(int length) const OVERRIDE;
+  virtual int GetStyle() const OVERRIDE;
+  virtual std::string GetFontName() const OVERRIDE;
+  virtual int GetFontSize() const OVERRIDE;
+  virtual NativeFont GetNativeFont() const OVERRIDE;
+
+  // Customizes the font metrics.
+  void SetHeight(int height);
+  void SetBaseline(int baseline);
+
+ private:
+  // Initializes this instance.
+  void InitWithNameAndSize(const std::string& font_name, int font_size);
+
+  std::string font_name_;
+  int font_size_;
+  int style_;
+  int height_;
+  int baseline_;
+  int average_character_width_;
+
+  DISALLOW_COPY_AND_ASSIGN(PlatformFontFake);
+};
+
+}  // namespace gfx
+
+#endif  // UI_GFX_PLATFORM_FONT_FAKE_H_