views: remove PlatformStyle combobox hooks

ui/views/style/platform_style.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/views/style/platform_style.h"
 
 #include "base/memory/ptr_util.h"
 #include "build/build_config.h"
 #include "ui/base/material_design/material_design_controller.h"
 #include "ui/base/resource/resource_bundle.h"
@@ skipping 18 matching lines @@
 #if !defined(DESKTOP_LINUX) && !defined(OS_MACOSX)
 // Default text and shadow colors for STYLE_BUTTON.
 const SkColor kStyleButtonTextColor = SK_ColorBLACK;
 const SkColor kStyleButtonShadowColor = SK_ColorWHITE;
 #endif
 
 }  // namespace
 
 #if !defined(OS_MACOSX)
 
-const int PlatformStyle::kComboboxNormalArrowPadding = 7;
 const int PlatformStyle::kMinLabelButtonWidth = 70;
 const int PlatformStyle::kMinLabelButtonHeight = 33;
 const bool PlatformStyle::kDefaultLabelButtonHasBoldFont = true;
 const bool PlatformStyle::kDialogDefaultButtonCanBeCancel = true;
 const bool PlatformStyle::kSelectWordOnRightClick = false;
 const bool PlatformStyle::kSelectAllOnRightClickWhenUnfocused = false;
 const CustomButton::NotifyAction PlatformStyle::kMenuNotifyActivationAction =
     CustomButton::NOTIFY_ON_RELEASE;
 const CustomButton::KeyClickAction PlatformStyle::kKeyClickActionOnSpace =
     CustomButton::CLICK_ON_KEY_RELEASE;
 const bool PlatformStyle::kReturnClicksFocusedControl = true;
 const bool PlatformStyle::kTreeViewSelectionPaintsEntireRow = false;
 const bool PlatformStyle::kTreeViewUsesOpenIcon = true;
 const bool PlatformStyle::kUseRipples = true;
 const bool PlatformStyle::kMirrorBubbleArrowInRTLByDefault = true;
 
 // static
-gfx::ImageSkia PlatformStyle::CreateComboboxArrow(bool is_enabled,
-                                                  Combobox::Style style) {
-  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
-  return *rb.GetImageSkiaNamed(IDR_MENU_DROPARROW);
-}
-
-// static
 std::unique_ptr<ScrollBar> PlatformStyle::CreateScrollBar(bool is_horizontal) {
 #if defined(OS_CHROMEOS)
   return base::MakeUnique<OverlayScrollBar>(is_horizontal);
 #else
   return base::MakeUnique<ScrollBarViews>(is_horizontal);
 #endif
 }
 
 // static
 SkColor PlatformStyle::TextColorForButton(
@@ skipping 24 matching lines @@
 
 #if !defined(DESKTOP_LINUX)
 // static
 std::unique_ptr<Border> PlatformStyle::CreateThemedLabelButtonBorder(
     LabelButton* button) {
   return button->CreateDefaultBorder();
 }
 #endif
 
 }  // namespace views