Views:: Make Labels support text selection.

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 141 matching lines @@
 
     // Mac has a different "pressed button" styling because it doesn't use
     // ripples.
     case kColorId_ButtonPressedShade:
       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_LabelTextSelectionBackgroundFocused:
     case kColorId_TextfieldSelectionBackgroundFocused:
       return NSSystemColorToSkColor([NSColor selectedTextBackgroundColor]);
     default:
       break;
   }
 
   if (ui::MaterialDesignController::IsSecondaryUiMaterial())
     return ApplySystemControlTint(GetAuraColor(color_id, this));
 
   // TODO(tapted): Add caching for these, and listen for
@@ skipping 19 matching lines @@
     case kColorId_ButtonEnabledColor:
     case kColorId_EnabledMenuButtonBorderColor:
     case kColorId_LabelEnabledColor:
     case kColorId_ProminentButtonColor:
       return NSSystemColorToSkColor([NSColor controlTextColor]);
     case kColorId_ButtonDisabledColor:
     case kColorId_LabelDisabledColor:
       return NSSystemColorToSkColor([NSColor disabledControlTextColor]);
     case kColorId_ButtonHoverColor:
       return NSSystemColorToSkColor([NSColor selectedControlTextColor]);
+    case kColorId_LabelTextSelectionColor:
+      return NSSystemColorToSkColor([NSColor selectedTextColor]);
 
     // Link.
     case kColorId_LinkDisabled:
       return SK_ColorBLACK;
     case kColorId_LinkEnabled:
       return SK_ColorBLUE;
     case kColorId_LinkPressed:
       return SK_ColorRED;
 
     // Text fields.
@@ skipping 220 matching lines @@
   canvas->drawDRRect(outer_shape, shape, paint);
 }
 
 NativeThemeMac::NativeThemeMac() {
 }
 
 NativeThemeMac::~NativeThemeMac() {
 }
 
 }  // namespace ui