ash: Restore previous show state after exiting fullscreen.

ash/wm/screen_pinning_controller.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/wm/screen_pinning_controller.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "ash/common/wm/container_finder.h"
@@ skipping 255 matching lines @@
 
 void ScreenPinningController::OnSystemModalContainerWindowStackingChanged(
     WmWindow* window) {
   KeepDimWindowAtBottom(window->GetParent());
 }
 
 WmWindow* ScreenPinningController::CreateWindowDimmer(WmWindow* container) {
   std::unique_ptr<WindowDimmer> window_dimmer =
       base::MakeUnique<WindowDimmer>(container);
   window_dimmer->SetDimOpacity(1);  // Fully opaque.
-  window_dimmer->window()->SetFullscreen();
+  window_dimmer->window()->SetFullscreen(true);
   window_dimmer->window()->Show();
   WmWindow* window = window_dimmer->window();
   window_dimmers_->Set(container, std::move(window_dimmer));
   return window;
 }
 
 void ScreenPinningController::OnDisplayConfigurationChanged() {
   // Note: this is called on display attached or detached.
   if (!IsPinned())
     return;
@@ skipping 50 matching lines @@
     return;
 
   WindowDimmer* window_dimmer = window_dimmers_->Get(container);
   if (window_dimmer) {
     base::AutoReset<bool> auto_reset(&in_restacking_, true);
     container->StackChildAtBottom(window_dimmer->window());
   }
 }
 
 }  // namespace ash