[Downloads] Use the initiating StoragePartition for resumption.

content/browser/download/download_item_impl.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 CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 40 matching lines @@
 
   // Constructing from persistent store:
   // |bound_net_log| is constructed externally for our use.
   DownloadItemImpl(DownloadItemImplDelegate* delegate,
                    const std::string& guid,
                    uint32_t id,
                    const base::FilePath& current_path,
                    const base::FilePath& target_path,
                    const std::vector<GURL>& url_chain,
                    const GURL& referrer_url,
+                   const GURL& site_url,
                    const GURL& tab_url,
                    const GURL& tab_referrer_url,
                    const std::string& mime_type,
                    const std::string& original_mime_type,
                    const base::Time& start_time,
                    const base::Time& end_time,
                    const std::string& etag,
                    const std::string& last_modified,
                    int64_t received_bytes,
                    int64_t total_bytes,
                    const std::string& hash,
                    DownloadItem::DownloadState state,
                    DownloadDangerType danger_type,
                    DownloadInterruptReason interrupt_reason,
                    bool opened,
                    const net::BoundNetLog& bound_net_log);
 
   // Constructing for a regular download.
   // |bound_net_log| is constructed externally for our use.
-  // TODO(asanka): Get rid of the DownloadCreateInfo parameter since active
-  // downloads end up at Start() immediately after creation.
   DownloadItemImpl(DownloadItemImplDelegate* delegate,
                    uint32_t id,
                    const DownloadCreateInfo& info,
                    const net::BoundNetLog& bound_net_log);
 
   // Constructing for the "Save Page As..." feature:
   // |bound_net_log| is constructed externally for our use.
   DownloadItemImpl(
       DownloadItemImplDelegate* delegate,
       uint32_t id,
@@ skipping 22 matching lines @@
   DownloadState GetState() const override;
   DownloadInterruptReason GetLastReason() const override;
   bool IsPaused() const override;
   bool IsTemporary() const override;
   bool CanResume() const override;
   bool IsDone() const override;
   const GURL& GetURL() const override;
   const std::vector<GURL>& GetUrlChain() const override;
   const GURL& GetOriginalUrl() const override;
   const GURL& GetReferrerUrl() const override;
+  const GURL& GetSiteUrl() const override;
   const GURL& GetTabUrl() const override;
   const GURL& GetTabReferrerUrl() const override;
   std::string GetSuggestedFilename() const override;
   std::string GetContentDisposition() const override;
   std::string GetMimeType() const override;
   std::string GetOriginalMimeType() const override;
   std::string GetRemoteAddress() const override;
   bool HasUserGesture() const override;
   ui::PageTransition GetTransitionType() const override;
   const std::string& GetLastModifiedTime() const override;
@@ skipping 385 matching lines @@
 
   // Whether the target should be overwritten, uniquified or prompted for.
   TargetDisposition target_disposition_ = TARGET_DISPOSITION_OVERWRITE;
 
   // The chain of redirects that leading up to and including the final URL.
   std::vector<GURL> url_chain_;
 
   // The URL of the page that initiated the download.
   GURL referrer_url_;
 
+  // Site URL for the site instance that initiated this download.
+  GURL site_url_;
+
   // The URL of the tab that initiated the download.
   GURL tab_url_;
 
   // The URL of the referrer of the tab that initiated the download.
   GURL tab_referrer_url_;
 
   // Filename suggestion from DownloadSaveInfo. It could, among others, be the
   // suggested filename in 'download' attribute of an anchor. Details:
   // http://www.whatwg.org/specs/web-apps/current-work/#downloading-hyperlinks
   std::string suggested_filename_;
@@ skipping 135 matching lines @@
   const net::BoundNetLog bound_net_log_;
 
   base::WeakPtrFactory<DownloadItemImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadItemImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_