Clean up NativeTheme (particularly CommonTheme).

ui/native_theme/native_theme_win.cc

 // 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.
 
 #include "ui/native_theme/native_theme_win.h"
 
 #include <windows.h>
 #include <stddef.h>
 #include <uxtheme.h>
 #include <vsstyle.h>
@@ skipping 487 matching lines @@
     }
   }
 
   // TODO: Obtain the correct colors using GetSysColor.
   // Dialogs:
   const SkColor kDialogBackgroundColor = SkColorSetRGB(251, 251, 251);
   // FocusableBorder:
   const SkColor kFocusedBorderColor = SkColorSetRGB(0x4d, 0x90, 0xfe);
   const SkColor kUnfocusedBorderColor = SkColorSetRGB(0xd9, 0xd9, 0xd9);
   // Button:
-  const SkColor kButtonBackgroundColor = SkColorSetRGB(0xde, 0xde, 0xde);
-  const SkColor kButtonHighlightColor = SkColorSetARGB(200, 255, 255, 255);
   const SkColor kButtonHoverColor = SkColorSetRGB(6, 45, 117);
   const SkColor kProminentButtonColorInvert = gfx::kGoogleBlue300;
   // MenuItem:
   const SkColor kMenuSchemeHighlightBackgroundColorInvert =
       SkColorSetRGB(0x30, 0x30, 0x30);
   // Table:
   const SkColor kPositiveTextColor = SkColorSetRGB(0x0b, 0x80, 0x43);
   const SkColor kNegativeTextColor = SkColorSetRGB(0xc5, 0x39, 0x29);
   // Results Tables:
   const SkColor kResultsTableUrlColor =
@@ skipping 14 matching lines @@
           color_utils::InvertColor(kDialogBackgroundColor) :
           kDialogBackgroundColor;
 
     // FocusableBorder
     case kColorId_FocusedBorderColor:
       return kFocusedBorderColor;
     case kColorId_UnfocusedBorderColor:
       return kUnfocusedBorderColor;
 
     // Button
-    case kColorId_ButtonBackgroundColor:
-      return kButtonBackgroundColor;
     case kColorId_ButtonEnabledColor:
       return system_colors_[COLOR_BTNTEXT];
-    case kColorId_ButtonHighlightColor:
-      return kButtonHighlightColor;
     case kColorId_ButtonHoverColor:
       return kButtonHoverColor;
 
     // Label
     case kColorId_LabelEnabledColor:
       return system_colors_[COLOR_BTNTEXT];
     case kColorId_LabelDisabledColor:
       return system_colors_[COLOR_GRAYTEXT];
-    case kColorId_LabelBackgroundColor:
-      return system_colors_[COLOR_WINDOW];
 
     // Textfield
     case kColorId_TextfieldDefaultColor:
       return system_colors_[COLOR_WINDOWTEXT];
     case kColorId_TextfieldDefaultBackground:
       return system_colors_[COLOR_WINDOW];
     case kColorId_TextfieldReadOnlyColor:
       return system_colors_[COLOR_GRAYTEXT];
     case kColorId_TextfieldReadOnlyBackground:
       return system_colors_[COLOR_3DFACE];
@@ skipping 1550 matching lines @@
     break;
   case LAST:
     NOTREACHED();
     break;
   }
   theme_handles_[theme_name] = handle;
   return handle;
 }
 
 }  // namespace ui