views: refactor away PlatformStyle::BackgroundColorForMdButton

ui/native_theme/native_theme_dark_aura.cc

 // Copyright 2015 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.
 
 #include "ui/native_theme/native_theme_dark_aura.h"
 
 #include "ui/base/material_design/material_design_controller.h"
 #include "ui/gfx/color_palette.h"
 
 namespace ui {
@@ skipping 24 matching lines @@
   static const SkColor kResultsTableText = SK_ColorWHITE;
   static const SkColor kResultsTableDimmedText =
       SkColorSetA(kResultsTableText, 0x80);
 
   switch (color_id) {
     // Button
     case kColorId_ButtonEnabledColor:
       return kButtonEnabledColor;
     case kColorId_CallToActionColor:
       return gfx::kGoogleBlue300;
+    case kColorId_ButtonPressedShade:

[Evan Stade, 2016/09/08 14:50:47]

nit: move to intentional pass-throughs block

[Elly Fong-Jones, 2016/09/08 16:06:12]

Done.

+      return SK_ColorTRANSPARENT;
 
     // Label
     case kColorId_LabelEnabledColor:
       return kPrimaryTextColor;
     case kColorId_LabelDisabledColor:
       return kDisabledTextColor;
     case kColorId_LabelBackgroundColor:
       return kDefaultDarkBackground;
 
     // Link
@@ skipping 104 matching lines @@
 
   NOTREACHED();
   return gfx::kPlaceholderColor;
 }
 
 NativeThemeDarkAura::NativeThemeDarkAura() {}
 
 NativeThemeDarkAura::~NativeThemeDarkAura() {}
 
 }  // namespace ui