Initialize RenderWidget(Host)(View)s with correct visibility state

content/renderer/render_process_visibility_manager.h

Index: content/renderer/render_process_visibility_manager.h
diff --git a/content/renderer/render_process_visibility_manager.h b/content/renderer/render_process_visibility_manager.h
deleted file mode 100644
index 290da81536d1e0e19bbf2f6f8f3d64c386c4a43f..0000000000000000000000000000000000000000
--- a/content/renderer/render_process_visibility_manager.h
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2013 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_RENDERER_RENDER_PROCESS_VISIBILITY_MANAGER_H_
-#define CONTENT_RENDERER_RENDER_PROCESS_VISIBILITY_MANAGER_H_
-
-#include "base/memory/singleton.h"
-#include "content/common/content_export.h"
-
-namespace content {
-
-class CONTENT_EXPORT RenderProcessVisibilityManager {
- public:
-  static RenderProcessVisibilityManager* GetInstance();
-
-  void WidgetVisibilityChanged(bool visible);
-
- private:
-  friend struct DefaultSingletonTraits<RenderProcessVisibilityManager>;
-
-  RenderProcessVisibilityManager();
-  ~RenderProcessVisibilityManager();
-
-  int num_visible_render_widgets_;
-
-  DISALLOW_COPY_AND_ASSIGN(RenderProcessVisibilityManager);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_RENDER_PROCESS_VISIBILITY_MANAGER_H_