[Extensions] Small cleanup of extension_install_prompt.*

chrome/browser/extensions/extension_install_prompt.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 CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_
 
 #include <stddef.h>
 
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
-#include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "extensions/common/permissions/permission_message.h"
-#include "extensions/common/url_pattern.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/image/image.h"
-#include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/native_widget_types.h"
 
 class ExtensionInstallPromptShowParams;
 class Profile;
 
 namespace base {
 class DictionaryValue;
 class MessageLoop;
 }  // namespace base
 
 namespace content {
 class BrowserContext;
 class WebContents;
 }
 
 namespace extensions {
 class BundleInstaller;
 class CrxInstallError;
 class Extension;
 class ExtensionInstallUI;
-class ExtensionWebstorePrivateApiTest;
-class MockGetAuthTokenFunction;
 class PermissionSet;
 }  // namespace extensions
 
-namespace infobars {
-class InfoBarDelegate;
+namespace gfx {
+class ImageSkia;
 }
 
 // Displays all the UI around extension installation.
-class ExtensionInstallPrompt
-    : public base::SupportsWeakPtr<ExtensionInstallPrompt> {
+class ExtensionInstallPrompt {
  public:
   // This enum is associated with Extensions.InstallPrompt_Type UMA histogram.
   // Do not modify existing values and add new values only to the end.
   enum PromptType {
     UNSET_PROMPT_TYPE = -1,
     INSTALL_PROMPT = 0,
     INLINE_INSTALL_PROMPT,
     BUNDLE_INSTALL_PROMPT,
     RE_ENABLE_PROMPT,
     PERMISSIONS_PROMPT,
@@ skipping 273 matching lines @@
 
   // Installation was successful. This is declared virtual for testing.
   virtual void OnInstallSuccess(const extensions::Extension* extension,
                                 SkBitmap* icon);
 
   // Installation failed. This is declared virtual for testing.
   virtual void OnInstallFailure(const extensions::CrxInstallError& error);
 
   bool did_call_show_dialog() const { return did_call_show_dialog_; }
 
- protected:
-  friend class extensions::ExtensionWebstorePrivateApiTest;
-  friend class WebstoreStartupInstallUnpackFailureTest;
-
  private:
-  friend class GalleryInstallApiTestObserver;
-
   // Sets the icon that will be used in any UI. If |icon| is NULL, or contains
   // an empty bitmap, then a default icon will be used instead.
   void SetIcon(const SkBitmap* icon);
 
   // ImageLoader callback.
   void OnImageLoaded(const gfx::Image& image);
 
   // Starts the process of showing a confirmation UI, which is split into two.
   // 1) Set off a 'load icon' task.
   // 2) Handle the load icon response and show the UI (OnImageLoaded).
@@ skipping 28 matching lines @@
 
   // A pre-filled prompt.
   scoped_ptr<Prompt> prompt_;
 
   // Used to show the confirm dialog.
   ShowDialogCallback show_dialog_callback_;
 
   // Whether or not the |show_dialog_callback_| was called.
   bool did_call_show_dialog_;
 
+  base::WeakPtrFactory<ExtensionInstallPrompt> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionInstallPrompt);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_