Factor Chrome details out of update manifest fetching.

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index dee4596c0957a91fe46dd672bdb2ccb9b96c9ece..0b1cd3c6e3b65a9ef594c1dba3a4c3a99160af71 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -37,17 +37,15 @@
 #include "chrome/browser/extensions/permissions_updater.h"
 #include "chrome/browser/extensions/shared_module_service.h"
 #include "chrome/browser/extensions/unpacked_installer.h"
+#include "chrome/browser/extensions/updater/chrome_extension_downloader_factory.h"
 #include "chrome/browser/extensions/updater/extension_cache.h"
 #include "chrome/browser/extensions/updater/extension_downloader.h"
 #include "chrome/browser/extensions/updater/extension_updater.h"
+#include "chrome/browser/google/google_brand.h"
 #include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/signin/profile_identity_provider.h"
-#include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
-#include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
 #include "chrome/browser/ui/webui/favicon_source.h"
 #include "chrome/browser/ui/webui/ntp/thumbnail_source.h"
-#include "chrome/browser/ui/webui/signin/login_ui_service_factory.h"
 #include "chrome/browser/ui/webui/theme_source.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/crash_keys.h"
@@ -56,7 +54,6 @@
 #include "chrome/common/extensions/manifest_url_handler.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
-#include "components/signin/core/browser/signin_manager.h"
 #include "components/startup_metric_utils/startup_metric_utils.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/notification_service.h"
@@ -92,8 +89,6 @@ using content::BrowserThread;
 using content::DevToolsAgentHost;
 using extensions::CrxInstaller;
 using extensions::Extension;
-using extensions::ExtensionDownloader;
-using extensions::ExtensionDownloaderDelegate;
 using extensions::ExtensionIdSet;
 using extensions::ExtensionInfo;
 using extensions::ExtensionRegistry;
@@ -116,15 +111,6 @@ namespace {
 // Wait this many seconds after an extensions becomes idle before updating it.
 const int kUpdateIdleDelay = 5;
 
-#if defined(ENABLE_EXTENSIONS)
-scoped_ptr<IdentityProvider> CreateWebstoreIdentityProvider(Profile* profile) {
-  return make_scoped_ptr<IdentityProvider>(new ProfileIdentityProvider(
-      SigninManagerFactory::GetForProfile(profile),
-      ProfileOAuth2TokenServiceFactory::GetForProfile(profile),
-      LoginUIServiceFactory::GetForProfile(profile)));
-}
-#endif  // defined(ENABLE_EXTENSIONS)
-
 }  // namespace
 
 // ExtensionService.
@@ -324,8 +310,8 @@ ExtensionService::ExtensionService(Profile* profile,
         profile,
         update_frequency,
         extensions::ExtensionCache::GetInstance(),
-        base::Bind(&ExtensionService::CreateExtensionDownloader,
-                   base::Unretained(this))));
+        base::Bind(ChromeExtensionDownloaderFactory::CreateForProfile,
+                   profile)));
   }
 
   component_loader_.reset(
@@ -586,20 +572,6 @@ bool ExtensionService::UpdateExtension(const std::string& id,
   return true;
 }
 
-scoped_ptr<ExtensionDownloader> ExtensionService::CreateExtensionDownloader(
-    ExtensionDownloaderDelegate* delegate) {
-  scoped_ptr<ExtensionDownloader> downloader;
-#if defined(ENABLE_EXTENSIONS)
-  scoped_ptr<IdentityProvider> identity_provider =
-      CreateWebstoreIdentityProvider(profile_);
-  downloader.reset(new ExtensionDownloader(
-      delegate,
-      profile_->GetRequestContext()));
-  downloader->SetWebstoreIdentityProvider(identity_provider.Pass());
-#endif
-  return downloader.Pass();
-}
-
 void ExtensionService::ReloadExtensionImpl(
     // "transient" because the process of reloading may cause the reference
     // to become invalid. Instead, use |extension_id|, a copy.