views: Mac pressed button shade 0.05a -> 0.1a

ui/native_theme/native_theme_mac.mm

 // 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.
 
 #include "ui/native_theme/native_theme_mac.h"
 
 #import <Cocoa/Cocoa.h>
 #include <stddef.h>
 
 #include "base/mac/mac_util.h"
@@ skipping 132 matching lines @@
       return kMenuPopupBackgroundColor;
     case kColorId_MenuSeparatorColor:
       return base::mac::IsOS10_9() ? kMenuSeparatorColorMavericks
                                    : kMenuSeparatorColor;
     case kColorId_MenuBorderColor:
       return kMenuBorderColor;
 
     // Mac has a different "pressed button" styling because it doesn't use
     // ripples.
     case kColorId_ButtonPressedShade:
-      return SkColorSetA(SK_ColorBLACK, 0x08);
+      return SkColorSetA(SK_ColorBLACK, 0x10);
 
     // There's a system setting General > Highlight color which sets the
     // background color for text selections. We honor that setting.
     // TODO(ellyjones): Listen for NSSystemColorsDidChangeNotification somewhere
     // and propagate it to the View hierarchy.
     case kColorId_TextfieldSelectionBackgroundFocused:
       return NSSystemColorToSkColor([NSColor selectedTextBackgroundColor]);
     default:
       break;
   }
@@ skipping 272 matching lines @@
   canvas->drawDRRect(outer_shape, shape, paint);
 }
 
 NativeThemeMac::NativeThemeMac() {
 }
 
 NativeThemeMac::~NativeThemeMac() {
 }
 
 }  // namespace ui