Fix Views blue button's blurry text on Aura.

ui/views/controls/button/label_button.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_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_H_
 #define UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_H_
 
 #include "base/compiler_specific.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/font.h"
@@ skipping 55 matching lines @@
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
 
  protected:
    Label* label() const { return label_; }
 
   // Fill |params| with information about the button.
   virtual void GetExtraParams(ui::NativeTheme::ExtraParams* params) const;
 
+  // Resets colors from the NativeTheme, explicitly set colors are unchanged.
+  virtual void ResetColorsFromNativeTheme();
+
   // Updates the image view to contain the appropriate button state image.
   void UpdateImage();
 
  private:
   FRIEND_TEST_ALL_PREFIXES(LabelButtonTest, Init);
   FRIEND_TEST_ALL_PREFIXES(LabelButtonTest, Label);
   FRIEND_TEST_ALL_PREFIXES(LabelButtonTest, Image);
   FRIEND_TEST_ALL_PREFIXES(LabelButtonTest, LabelAndImage);
   FRIEND_TEST_ALL_PREFIXES(LabelButtonTest, Font);
 
-  // Resets colors from the NativeTheme, explicitly set colors are unchanged.
-  void ResetColorsFromNativeTheme();
-
   // Overridden from CustomButton:
   virtual void StateChanged() OVERRIDE;
 
   // Overridden from View:
   virtual void ChildPreferredSizeChanged(View* child) OVERRIDE;
   virtual void OnNativeThemeChanged(const ui::NativeTheme* theme) OVERRIDE;
 
   // Overridden from NativeThemeDelegate:
   virtual ui::NativeTheme::Part GetThemePart() const OVERRIDE;
   virtual gfx::Rect GetThemePaintRect() const OVERRIDE;
@@ skipping 28 matching lines @@
 
   // The button's overall style.
   ButtonStyle style_;
 
   DISALLOW_COPY_AND_ASSIGN(LabelButton);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_H_