Hide the Legacy HWND when the RWHVA is destroyed.

content/browser/web_contents/web_contents_view_aura.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/renderer_host/overscroll_controller_delegate.h"
 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
 #include "content/browser/web_contents/web_contents_view.h"
 #include "content/common/content_export.h"
+#include "content/public/browser/web_contents_observer.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/aura/window_observer.h"
 #include "ui/compositor/layer_animation_observer.h"
 #include "ui/wm/public/drag_drop_delegate.h"
 
 #if defined(OS_WIN)
 #include "content/browser/renderer_host/legacy_render_widget_host_win.h"
 #include "content/browser/renderer_host/legacy_render_widget_host_win_delegate.h"
 #endif
 
@@ skipping 23 matching lines @@
 class WebContentsViewAura
     : public WebContentsView,
 #if defined(OS_WIN)
       public LegacyRenderWidgetHostHWNDDelegate,
 #endif
       public RenderViewHostDelegateView,
       public OverscrollControllerDelegate,
       public ui::ImplicitAnimationObserver,
       public aura::WindowDelegate,
       public aura::client::DragDropDelegate,
-      public aura::WindowObserver {
+      public aura::WindowObserver,
+      public WebContentsObserver {
  public:
   WebContentsViewAura(WebContentsImpl* web_contents,
                       WebContentsViewDelegate* delegate);
 
   CONTENT_EXPORT void SetTouchEditableForTest(
       TouchEditableImplAura* touch_editable);
 
  private:
   class WindowObserver;
 
@@ skipping 119 matching lines @@
   // Overridden from ui::EventHandler:
   void OnKeyEvent(ui::KeyEvent* event) override;
   void OnMouseEvent(ui::MouseEvent* event) override;
 
   // Overridden from aura::client::DragDropDelegate:
   void OnDragEntered(const ui::DropTargetEvent& event) override;
   int OnDragUpdated(const ui::DropTargetEvent& event) override;
   void OnDragExited() override;
   int OnPerformDrop(const ui::DropTargetEvent& event) override;
 
+  // Overridden from WebContentsObserver:
+  void RenderProcessGone(base::TerminationStatus status) override;
+
   // Overridden from aura::WindowObserver:
   void OnWindowVisibilityChanged(aura::Window* window, bool visible) override;
 
   // Update the web contents visiblity.
   void UpdateWebContentsVisibility(bool visible);
 
 #if defined(OS_WIN)
   // Overridden from LegacyRenderWidgetHostHWNDDelegate:
   virtual gfx::NativeViewAccessible GetNativeViewAccessible() override;
+
+  void UpdateLegacyHwndVisibility();
 #endif
 
   scoped_ptr<aura::Window> window_;
 
   // The window that shows the screenshot of the history page during an
   // overscroll navigation gesture.
   scoped_ptr<aura::Window> overscroll_window_;
 
   scoped_ptr<WindowObserver> window_observer_;
 
@@ skipping 43 matching lines @@
   // On Windows we can run into problems if resources get released within the
   // initialization phase while the content (and its dimensions) are not known.
   bool is_or_was_visible_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_