[Downloads] Use the initiating StoragePartition for resumption.

chrome/browser/extensions/webstore_installer.cc

 // 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.
 
 #include "chrome/browser/extensions/webstore_installer.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <limits>
 #include <set>
@@ skipping 34 matching lines @@
 #include "content/public/browser/download_save_info.h"
 #include "content/public/browser/download_url_parameters.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
+#include "content/public/browser/storage_partition.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/install/crx_install_error.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_urls.h"
 #include "extensions/common/manifest_constants.h"
 #include "extensions/common/manifest_handlers/shared_module_info.h"
 #include "net/base/escape.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 593 matching lines @@
     return;
   }
 
   // The download url for the given extension is contained in |download_url_|.
   // We will navigate the current tab to this url to start the download. The
   // download system will then pass the crx to the CrxInstaller.
   RecordDownloadSource(DOWNLOAD_INITIATED_BY_WEBSTORE_INSTALLER);
   int render_process_host_id = contents->GetRenderProcessHost()->GetID();
   int render_view_host_routing_id =
       contents->GetRenderViewHost()->GetRoutingID();
-  content::ResourceContext* resource_context =
-      controller.GetBrowserContext()->GetResourceContext();
+
+  content::RenderFrameHost* render_frame_host = contents->GetMainFrame();
+  content::StoragePartition* storage_partition =
+      BrowserContext::GetStoragePartition(profile_,
+                                          render_frame_host->GetSiteInstance());
   std::unique_ptr<DownloadUrlParameters> params(new DownloadUrlParameters(
       download_url_, render_process_host_id, render_view_host_routing_id,
-      contents->GetMainFrame()->GetRoutingID(), resource_context));
+      contents->GetMainFrame()->GetRoutingID(),

[Charlie Reis, 2016/05/05 21:43:22]

nit: Can use |render_frame_host| here.

[asanka, 2016/05/07 00:24:45]

Done.

+      storage_partition->GetURLRequestContext()));
   params->set_file_path(file);
   if (controller.GetVisibleEntry())
     params->set_referrer(content::Referrer::SanitizeForRequest(
         download_url_, content::Referrer(controller.GetVisibleEntry()->GetURL(),
                                          blink::WebReferrerPolicyDefault)));
   params->set_callback(base::Bind(&WebstoreInstaller::OnDownloadStarted,
                                   this,
                                   extension_id));
   download_manager->DownloadUrl(std::move(params));
 }
@@ skipping 106 matching lines @@
         1,
         kMaxSizeKb,
         kNumBuckets);
   }
   UMA_HISTOGRAM_BOOLEAN(
       "Extensions.WebstoreDownload.InterruptTotalSizeUnknown",
       total_bytes <= 0);
 }
 
 }  // namespace extensions