Move more from WmShell to Shell

ash/common/system/chromeos/palette/palette_tray.cc

 // Copyright 2016 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 "ash/common/system/chromeos/palette/palette_tray.h"
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/common/shelf/wm_shelf.h"
@@ skipping 50 matching lines @@
 // Color of the separator.
 const SkColor kPaletteSeparatorColor = SkColorSetARGB(0x1E, 0x00, 0x00, 0x00);
 
 // Returns true if we are in a user session that can show the stylus tools.
 bool IsInUserSession() {
   SessionStateDelegate* session_state_delegate =
       WmShell::Get()->GetSessionStateDelegate();
   return !session_state_delegate->IsUserSessionBlocked() &&
          session_state_delegate->GetSessionState() ==
              session_manager::SessionState::ACTIVE &&
-         WmShell::Get()->system_tray_delegate()->GetUserLoginStatus() !=
+         Shell::Get()->system_tray_delegate()->GetUserLoginStatus() !=
              LoginStatus::KIOSK_APP;
 }
 
 class TitleView : public views::View, public views::ButtonListener {
  public:
   explicit TitleView(PaletteTray* palette_tray) : palette_tray_(palette_tray) {
     // TODO(tdanderson|jdufault): Use TriView to handle the layout of the title.
     // See crbug.com/614453.
     auto* box_layout =
         new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 0);
@@ skipping 37 matching lines @@
   }
 
   ~TitleView() override {}
 
  private:
   // views::ButtonListener:
   void ButtonPressed(views::Button* sender, const ui::Event& event) override {
     if (sender == settings_button_) {
       palette_tray_->RecordPaletteOptionsUsage(
           PaletteTrayOptions::PALETTE_SETTINGS_BUTTON);
-      WmShell::Get()->system_tray_controller()->ShowPaletteSettings();
+      Shell::Get()->system_tray_controller()->ShowPaletteSettings();
       palette_tray_->HidePalette();
     } else if (sender == help_button_) {
       palette_tray_->RecordPaletteOptionsUsage(
           PaletteTrayOptions::PALETTE_HELP_BUTTON);
-      WmShell::Get()->system_tray_controller()->ShowPaletteHelp();
+      Shell::Get()->system_tray_controller()->ShowPaletteHelp();
       palette_tray_->HidePalette();
     } else {
       NOTREACHED();
     }
   }
 
   // Unowned pointers to button views so we can determine which button was
   // clicked.
   views::View* settings_button_;
   views::View* help_button_;
@@ skipping 279 matching lines @@
     UpdateIconVisibility();
   }
 }
 
 void PaletteTray::UpdateIconVisibility() {
   SetVisible(is_palette_enabled_ && palette_utils::HasStylusInput() &&
              IsInUserSession());
 }
 
 }  // namespace ash