Add/resurrect support for bundles of WebStore items.

chrome/browser/extensions/webstore_install_helper.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_WEBSTORE_INSTALL_HELPER_H_
 #define CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALL_HELPER_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "chrome/browser/image_decoder.h"
 #include "content/public/browser/utility_process_host_client.h"
-#include "net/url_request/url_fetcher_delegate.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "url/gurl.h"
 
-class SkBitmap;
+class SafeImageFetcher;
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
 namespace content {
 class UtilityProcessHost;
 }
 
 namespace net {
-class URLFetcher;
 class URLRequestContextGetter;
 }
 
 namespace extensions {
 
 // This is a class to help dealing with webstore-provided data. It manages
 // sending work to the utility process for parsing manifests and
 // fetching/decoding icon data. Clients must implement the
 // WebstoreInstallHelper::Delegate interface to receive the parsed data.
-class WebstoreInstallHelper : public ImageDecoder::ImageRequest,
-                              public content::UtilityProcessHostClient,
-                              public net::URLFetcherDelegate {
+class WebstoreInstallHelper : public content::UtilityProcessHostClient {
  public:
   class Delegate {
    public:
     enum InstallHelperResultCode {
       UNKNOWN_ERROR,
       ICON_ERROR,
       MANIFEST_ERROR
     };
 
     // Called when we've successfully parsed the manifest and decoded the icon
@@ skipping 22 matching lines @@
                         net::URLRequestContextGetter* context_getter);
   void Start();
 
  private:
   ~WebstoreInstallHelper() override;
 
   void StartWorkOnIOThread();
   void ReportResultsIfComplete();
   void ReportResultFromUIThread();
 
-  // Implementing the net::URLFetcherDelegate interface.
-  void OnURLFetchComplete(const net::URLFetcher* source) override;
-
   // Implementing pieces of the UtilityProcessHostClient interface.
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // Message handlers.
   void OnJSONParseSucceeded(const base::ListValue& wrapper);
   void OnJSONParseFailed(const std::string& error_message);
 
-  // ImageDecoder::ImageRequest implementation.
-  void OnImageDecoded(const SkBitmap& decoded_image) override;
-  void OnDecodeImageFailed() override;
+  void OnIconFetched(const SkBitmap& icon);
 
   // The client who we'll report results back to.
   Delegate* delegate_;
 
   // The extension id of the manifest we're parsing.
   std::string id_;
 
   // The manifest to parse.
   std::string manifest_;
 
   // If |icon_url_| is non-empty, it needs to be fetched and decoded into an
   // SkBitmap.
   GURL icon_url_;
-
-  // For fetching the icon, if needed.
-  scoped_ptr<net::URLFetcher> url_fetcher_;
   net::URLRequestContextGetter* context_getter_; // Only usable on UI thread.
+  scoped_ptr<SafeImageFetcher> icon_fetcher_;
 
   base::WeakPtr<content::UtilityProcessHost> utility_host_;
 
   // Flags for whether we're done doing icon decoding and manifest parsing.
   bool icon_decode_complete_;
   bool manifest_parse_complete_;
 
-  // The results of succesful decoding/parsing.
+  // The results of successful decoding/parsing.
   SkBitmap icon_;
   scoped_ptr<base::DictionaryValue> parsed_manifest_;
 
   // A details string for keeping track of any errors.
   std::string error_;
 
   // A code to distinguish between an error with the icon, and an error with the
   // manifest.
   Delegate::InstallHelperResultCode parse_error_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_INSTALL_HELPER_H_