Add support for managing active state of platform apps

chrome/browser/ui/views/extensions/shell_window_views.cc

Index: chrome/browser/ui/views/extensions/shell_window_views.cc
diff --git a/chrome/browser/ui/views/extensions/shell_window_views.cc b/chrome/browser/ui/views/extensions/shell_window_views.cc
index d8f5b5d1fe0154d4071533010228135ea18e9685..c3e233b37c98a246a76b30e4ca8701637735fd3a 100644
--- a/chrome/browser/ui/views/extensions/shell_window_views.cc
+++ b/chrome/browser/ui/views/extensions/shell_window_views.cc
@@ -252,6 +252,10 @@ bool ShellWindowViews::IsFullscreen() const {
   return window_->IsFullscreen();
 }
 
+gfx::NativeWindow ShellWindowViews::GetNativeWindow() {
+  return window_->GetNativeWindow();
+}
+
 gfx::Rect ShellWindowViews::GetRestoredBounds() const {
   return window_->GetRestoredBounds();
 }
@@ -317,7 +321,7 @@ bool ShellWindowViews::IsAlwaysOnTop() const {
 }
 
 void ShellWindowViews::DeleteDelegate() {
-  delete this;
+  OnNativeClose();
 }
 
 void ShellWindowViews::ButtonPressed(