Fix button color on Android to match Ash

Source/core/rendering/RenderThemeChromiumAndroid.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 40 matching lines @@
 RenderTheme& RenderTheme::theme()
 {
     DEFINE_STATIC_REF(RenderTheme, renderTheme, (RenderThemeChromiumAndroid::create()));
     return *renderTheme;
 }
 
 RenderThemeChromiumAndroid::~RenderThemeChromiumAndroid()
 {
 }
 
-Color RenderThemeChromiumAndroid::systemColor(CSSValueID cssValueId) const
-{
-    if (isRunningLayoutTest() && cssValueId == CSSValueButtonface) {
-        // Match Linux button color in layout tests.
-        static const Color linuxButtonGrayColor(0xffdddddd);
-        return linuxButtonGrayColor;
-    }
-    return RenderTheme::systemColor(cssValueId);
-}
-
 String RenderThemeChromiumAndroid::extraMediaControlsStyleSheet()
 {
     return String(mediaControlsAndroidUserAgentStyleSheet, sizeof(mediaControlsAndroidUserAgentStyleSheet));
 }
 
 String RenderThemeChromiumAndroid::extraDefaultStyleSheet()
 {
     return RenderThemeChromiumDefault::extraDefaultStyleSheet() +
         String(themeChromiumAndroidUserAgentStyleSheet, sizeof(themeChromiumAndroidUserAgentStyleSheet));
 }
@@ skipping 17 matching lines @@
 
 int RenderThemeChromiumAndroid::menuListArrowPadding() const
 {
     // We cannot use the scrollbar thickness here, as it's width is 0 on Android.
     // Instead, use the width of the scrollbar down arrow.
     IntSize scrollbarSize = blink::Platform::current()->themeEngine()->getSize(blink::WebThemeEngine::PartScrollbarDownArrow);
     return scrollbarSize.width();
 }
 
 } // namespace WebCore