Revert of Fix crash when user closes window prior to the "Confirm Install" prompt showing

chrome/browser/extensions/extension_install_prompt_show_params.h

Index: chrome/browser/extensions/extension_install_prompt_show_params.h
diff --git a/chrome/browser/extensions/extension_install_prompt_show_params.h b/chrome/browser/extensions/extension_install_prompt_show_params.h
deleted file mode 100644
index 2fe6aa51c5b3b2ab6f56563155073a9518b563ba..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/extension_install_prompt_show_params.h
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2014 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_SHOW_PARAMS_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_SHOW_PARAMS_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "ui/gfx/native_widget_types.h"
-
-class NativeWindowTracker;
-class Profile;
-
-namespace content {
-class WebContents;
-}
-
-// Parameters to show an install prompt dialog. The parameters control:
-// - The dialog's parent window
-// - The browser window to use to open a new tab if a user clicks a link in the
-//   dialog.
-class ExtensionInstallPromptShowParams {
- public:
-  explicit ExtensionInstallPromptShowParams(content::WebContents* web_contents);
-
-  // The most recently active browser window (or a new browser window if there
-  // are no browser windows) is used if a new tab needs to be opened.
-  ExtensionInstallPromptShowParams(Profile* profile, gfx::NativeWindow window);
-
-  virtual ~ExtensionInstallPromptShowParams();
-
-  Profile* profile() {
-    return profile_;
-  }
-
-  // The parent web contents for the dialog. Returns NULL if the web contents
-  // have been destroyed.
-  content::WebContents* GetParentWebContents();
-
-  // The parent window for the dialog. Returns NULL if the window has been
-  // destroyed.
-  gfx::NativeWindow GetParentWindow();
-
-  // Returns true if either the parent web contents or the parent window were
-  // destroyed.
-  bool WasParentDestroyed();
-
- private:
-  void WebContentsDestroyed();
-
-  Profile* profile_;
-  content::WebContents* parent_web_contents_;
-  bool parent_web_contents_destroyed_;
-  gfx::NativeWindow parent_window_;
-
-  class WebContentsDestructionObserver;
-  scoped_ptr<WebContentsDestructionObserver> web_contents_destruction_observer_;
-
-  scoped_ptr<NativeWindowTracker> native_window_tracker_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionInstallPromptShowParams);
-};
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_SHOW_PARAMS_H_