Remove unused references to NativeTheme in TrayPopupItemStyle.

ash/common/system/chromeos/tray_caps_lock.cc

Index: ash/common/system/chromeos/tray_caps_lock.cc
diff --git a/ash/common/system/chromeos/tray_caps_lock.cc b/ash/common/system/chromeos/tray_caps_lock.cc
index 5fe71d5ecae46ffeae21715e1ae59db8df987875..46cd7709b68130effe9a4cfc7ff38761d192bb1d 100644
--- a/ash/common/system/chromeos/tray_caps_lock.cc
+++ b/ash/common/system/chromeos/tray_caps_lock.cc
@@ -20,6 +20,7 @@
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/base/ime/chromeos/ime_keyboard.h"
 #include "ui/base/ime/chromeos/input_method_manager.h"
+#include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/paint_vector_icon.h"
@@ -49,7 +50,6 @@ class CapsLockDefaultView : public ActionableView {
  public:
   CapsLockDefaultView()
       : ActionableView(nullptr, TrayPopupInkDropStyle::FILL_BOUNDS),
-        image_(TrayPopupUtils::CreateMainImageView()),
         text_label_(TrayPopupUtils::CreateDefaultLabel()),
         shortcut_label_(TrayPopupUtils::CreateDefaultLabel()) {
     shortcut_label_->SetEnabled(false);
@@ -58,16 +58,23 @@ class CapsLockDefaultView : public ActionableView {
     SetLayoutManager(new views::FillLayout);
     AddChildView(tri_view);
 
+    auto image = TrayPopupUtils::CreateMainImageView();
     if (MaterialDesignController::UseMaterialDesignSystemIcons()) {
-      image_->SetEnabled(enabled());
-      UpdateStyle();
+      image->SetEnabled(enabled());
+      TrayPopupItemStyle default_view_style(
+          TrayPopupItemStyle::FontStyle::DEFAULT_VIEW_LABEL);
+      image->SetImage(gfx::CreateVectorIcon(kSystemMenuCapsLockIcon,
+                                            default_view_style.GetIconColor()));
+      default_view_style.SetupLabel(text_label_);
+      TrayPopupItemStyle caption_style(TrayPopupItemStyle::FontStyle::CAPTION);
+      caption_style.SetupLabel(shortcut_label_);
       SetInkDropMode(InkDropHostView::InkDropMode::ON);
     } else {
       ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-      image_->SetImage(bundle.GetImageNamed(IDR_AURA_UBER_TRAY_CAPS_LOCK_DARK)
-                           .ToImageSkia());
+      image->SetImage(bundle.GetImageNamed(IDR_AURA_UBER_TRAY_CAPS_LOCK_DARK)
+                          .ToImageSkia());
     }
-    tri_view->AddView(TriView::Container::START, image_);
+    tri_view->AddView(TriView::Container::START, image);
     tri_view->AddView(TriView::Container::CENTER, text_label_);
     tri_view->AddView(TriView::Container::END, shortcut_label_);
     tri_view->SetContainerBorder(
@@ -79,11 +86,10 @@ class CapsLockDefaultView : public ActionableView {
 
   // Updates the label text and the shortcut text.
   void Update(bool caps_lock_enabled) {
-    ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
     const int text_string_id = caps_lock_enabled
                                    ? IDS_ASH_STATUS_TRAY_CAPS_LOCK_ENABLED
                                    : IDS_ASH_STATUS_TRAY_CAPS_LOCK_DISABLED;
-    text_label_->SetText(bundle.GetLocalizedString(text_string_id));
+    text_label_->SetText(l10n_util::GetStringUTF16(text_string_id));
 
     int shortcut_string_id = 0;
     bool search_mapped_to_caps_lock =
@@ -99,37 +105,17 @@ class CapsLockDefaultView : public ActionableView {
               ? IDS_ASH_STATUS_TRAY_CAPS_LOCK_SHORTCUT_SEARCH
               : IDS_ASH_STATUS_TRAY_CAPS_LOCK_SHORTCUT_ALT_SEARCH;
     }
-    shortcut_label_->SetText(bundle.GetLocalizedString(shortcut_string_id));
+    shortcut_label_->SetText(l10n_util::GetStringUTF16(shortcut_string_id));
 
-    UpdateStyle();
     Layout();
   }
 
-  // ActionableView:
-  void OnNativeThemeChanged(const ui::NativeTheme* theme) override {
-    ActionableView::OnNativeThemeChanged(theme);
-    UpdateStyle();
-  }
-
  private:
   void GetAccessibleNodeData(ui::AXNodeData* node_data) override {
     node_data->role = ui::AX_ROLE_BUTTON;
     node_data->SetName(text_label_->text());
   }
 
-  // Update the Text theme and style based on the current theme.
-  void UpdateStyle() {
-    TrayPopupItemStyle default_view_style(
-        GetNativeTheme(), TrayPopupItemStyle::FontStyle::DEFAULT_VIEW_LABEL);
-    // Set image and label styles for Material Design Caps Lock default view.
-    image_->SetImage(gfx::CreateVectorIcon(kSystemMenuCapsLockIcon,
-                                           default_view_style.GetIconColor()));
-    default_view_style.SetupLabel(text_label_);
-    TrayPopupItemStyle caption_style(GetNativeTheme(),
-                                     TrayPopupItemStyle::FontStyle::CAPTION);
-    caption_style.SetupLabel(shortcut_label_);
-  }
-
   // ActionableView:
   bool PerformAction(const ui::Event& event) override {
     chromeos::input_method::ImeKeyboard* keyboard =
@@ -144,9 +130,6 @@ class CapsLockDefaultView : public ActionableView {
     return true;
   }
 
-  // It contains the image represents the Caps Lock.
-  views::ImageView* image_;
-
   // It indicates whether the Caps Lock is on or off.
   views::Label* text_label_;