Remove old web app code it's no longer needed. Simplifies startup a little.

chrome/browser/web_app.h

-// Copyright (c) 2006-2008 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_WEB_APP_H__
-#define CHROME_BROWSER_WEB_APP_H__
-
-#include <vector>
-
-#include "base/ref_counted.h"
-#include "chrome/browser/cancelable_request.h"
-#include "chrome/browser/gears_integration.h"
-#include "chrome/browser/history/history.h"
-#include "chrome/browser/webdata/web_data_service.h"
-#include "googleurl/src/gurl.h"
-#include "skia/include/SkBitmap.h"
-
-class Profile;
-class WebContents;
-
-// A WebApp represents a page that Gears has installed a shortcut for. A WebApp
-// has a name, url and set of images (potentially empty). The images are lazily
-// loaded when asked for.
-//
-// The images are first loaded from the WebDatabase. If the images are not in
-// the WebDB, the list of images is obtained from Gears then downloaded via the
-// WebContents set by SetWebContents. As images are loaded they are pushed to
-// the WebDatabase. Observers are notified any time the set of images changes.
-class WebApp : public base::RefCounted<WebApp>, public WebDataServiceConsumer {
- public:
-  typedef std::vector<SkBitmap> Images;
-
-  // The Observer is notified any time the set of images contained in the WebApp
-  // changes.
-  class Observer {
-   public:
-    virtual void WebAppImagesChanged(WebApp* web_app) = 0;
-  };
-
-  // Creates a WebApp by name and url. This variant is only used if Gears
-  // doesn't know about the shortcut.
-  WebApp(Profile* profile,
-         const GURL& url,
-         const std::wstring& name);
-
-  // Creates a WebApp from a Gears shortcut.
-  WebApp(Profile* profile,
-         const GearsShortcutData& shortcut);
-  ~WebApp();
-
-  // Sets the specified image. This is invoked from the WebContents when an
-  // image finishes downloading. If image_url is one of the images this WebApp
-  // asked to download, it is pushed to the database and the observer is
-  // notified. If the image isn't one that was asked for by this WebApp, nothing
-  // happens.
-  void SetImage(const GURL& image_url, const SkBitmap& image);
-
-  // Returns the set of images. If the images haven't been loaded yet, they are
-  // asked for.
-  const Images& GetImages();
-
-  // Convenience to get the favicon from the set of images. If a favicon sized
-  // image isn't found, an empty image is returned.
-  SkBitmap GetFavIcon();
-
-  // Name of the app.
-  const std::wstring& name() const { return name_; }
-
-  // URL to the app.
-  const GURL& url() const { return url_; }
-
-  // Sets the WebContents that is using this WebApp. This is used if the
-  // database doesn't have all the images. If NULL, images won't be downloaded
-  // if they aren't in the db.
-  void SetWebContents(WebContents* host);
-
-  // WebContents used to download images; may be null.
-  WebContents* web_contents() { return web_contents_; }
-
-  void AddObserver(Observer* obs);
-  void RemoveObserver(Observer* obs);
-
- private:
-  // Requests the images for this app from the web db. Does nothing if the
-  // images have already been requested.
-  void LoadImagesFromWebData();
-
-  // Notification from the WebDB that our request for the images has completed.
-  // This adds all the images from the request to this WebApp, and if not all
-  // images have been downloaded, the images are requested from the webContents.
-  // Similarly if a favicon sized image isn't available, one is asked for from
-  // history.
-  virtual void OnWebDataServiceRequestDone(WebDataService::Handle h,
-                                           const WDTypedResult* result);
-
-  // Callback from history when the favicon is available. If we don't have a
-  // favicon sized image, the image is added to this WebApp's list of images.
-  void OnFavIconFromHistory(HistoryService::Handle handle,
-                            bool know_favicon,
-                            scoped_refptr<RefCountedBytes> data,
-                            bool expired,
-                            GURL icon_url);
-
-  // Requests the favicon from history.
-  void LoadFavIconFromHistory();
-
-  // Asks the hosting WebApp to download all the images.
-  void DownloadImagesFromSite();
-
-  // Returns the position of the favicon, or images_.end() if no favicon sized
-  // image is available
-  Images::iterator GetFavIconIterator();
-
-  // An URLs in image_urls_ that are data encoded PNGs are extracted and added
-  // to images_.
-  void ExtractPNGEncodedURLs();
-
-  void NotifyObservers();
-
-  // WebContents used to download images, may be null.
-  WebContents* web_contents_;
-
-  // Profile used for WebDataservice and History.
-  Profile* profile_;
-
-  // URL of the app.
-  const GURL url_;
-
-  // Name of the app.
-  const std::wstring name_;
-
-  // Have the images been loaded from the WebDB? This is initially false and set
-  // true when GetImages is invoked.
-  bool loaded_images_from_web_data_;
-
-  // If non-zero, indicates we have a loading pending from the WebDB.
-  WebDataService::Handle image_load_handle_;
-
-  // Set of images.
-  Images images_;
-
-  // Set of image urls.
-  std::set<GURL> image_urls_;
-
-  // Should the images be downloaded from the page? This is false if we don't
-  // know the set of image urls (weren't created from a GearsShortcutData) or
-  // the image urls in the GearsShortcutData were empty.
-  bool download_images_;
-
-  // Used for history request for the favicon.
-  CancelableRequestConsumer request_consumer_;
-
-  ObserverList<Observer> observer_list_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(WebApp);
-};
-
-#endif  // CHROME_BROWSER_WEB_APP_H__
-