Promotes IsForceMaximizeOnFirstRun() to WmShell

ash/mus/bridge/wm_shell_mus.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/mus/bridge/wm_shell_mus.h"
 
 #include <utility>
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/key_event_watcher.h"
@@ skipping 239 matching lines @@
   NOTIMPLEMENTED();
   return false;
 }
 
 bool WmShellMus::IsInUnifiedModeIgnoreMirroring() const {
   // TODO(mash): implement http://crbug.com/622480.
   NOTIMPLEMENTED();
   return false;
 }
 
-bool WmShellMus::IsForceMaximizeOnFirstRun() {
-  NOTIMPLEMENTED();
-  return false;
-}
-
 void WmShellMus::SetDisplayWorkAreaInsets(WmWindow* window,
                                           const gfx::Insets& insets) {
   window_manager_->screen()->SetWorkAreaInsets(window->aura_window(), insets);
 }
 
 bool WmShellMus::IsPinned() {
   // TODO: http://crbug.com/622486.
   NOTIMPLEMENTED();
   return false;
 }
@@ skipping 147 matching lines @@
 }
 
 void WmShellMus::CreatePrimaryHost() {}
 
 void WmShellMus::InitHosts(const ShellInitParams& init_params) {
   window_manager_->CreatePrimaryRootWindowController(
       base::WrapUnique(init_params.primary_window_tree_host));
 }
 }  // namespace mus
 }  // namespace ash