Rename MaximizeMode to TabletMode

ash/system/overview/overview_button_tray.h

 // Copyright 2014 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.
 
 #ifndef ASH_SYSTEM_OVERVIEW_OVERVIEW_BUTTON_TRAY_H_
 #define ASH_SYSTEM_OVERVIEW_OVERVIEW_BUTTON_TRAY_H_
 
 #include "ash/ash_export.h"
 #include "ash/session/session_observer.h"
 #include "ash/shell_observer.h"
@@ skipping 12 matching lines @@
 // This tray will only be visible while in this state. This tray does not
 // provide any bubble view windows.
 class ASH_EXPORT OverviewButtonTray : public TrayBackgroundView,
                                       public SessionObserver,
                                       public ShellObserver {
  public:
   explicit OverviewButtonTray(Shelf* shelf);
   ~OverviewButtonTray() override;
 
   // Updates the tray's visibility based on the LoginStatus and the current
-  // state of MaximizeMode
+  // state of TabletMode
   virtual void UpdateAfterLoginStatusChange(LoginStatus status);
 
   // ActionableView:
   bool PerformAction(const ui::Event& event) override;
 
   // SessionObserver:
   void OnSessionStateChanged(session_manager::SessionState state) override;
 
   // ShellObserver:
-  void OnMaximizeModeStarted() override;
-  void OnMaximizeModeEnded() override;
+  void OnTabletModeStarted() override;
+  void OnTabletModeEnded() override;
   void OnOverviewModeStarting() override;
   void OnOverviewModeEnded() override;
 
   // TrayBackgroundView:
   void ClickedOutsideBubble() override;
   base::string16 GetAccessibleNameForTray() override;
   void HideBubbleWithView(const views::TrayBubbleView* bubble_view) override;
 
  private:
   friend class OverviewButtonTrayTest;
 
-  // Sets the icon to visible if maximize mode is enabled and
+  // Sets the icon to visible if tablet mode is enabled and
   // WindowSelectorController::CanSelect.
   void UpdateIconVisibility();
 
   // Weak pointer, will be parented by TrayContainer for its lifetime.
   views::ImageView* icon_;
 
   ScopedSessionObserver scoped_session_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(OverviewButtonTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_OVERVIEW_OVERVIEW_BUTTON_TRAY_H_