Revert of Simplify BrowserContext by removing redundant methods.

chrome/browser/extensions/external_install_error.cc

Index: chrome/browser/extensions/external_install_error.cc
diff --git a/chrome/browser/extensions/external_install_error.cc b/chrome/browser/extensions/external_install_error.cc
index 23bea74ca3d29ef9fddb4412d2d25810b5716619..1a493fa6869686cfedf3916be78c6408b552a25c 100644
--- a/chrome/browser/extensions/external_install_error.cc
+++ b/chrome/browser/extensions/external_install_error.cc
@@ -26,7 +26,6 @@
 #include "chrome/browser/ui/global_error/global_error_service_factory.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/grit/generated_resources.h"
-#include "content/public/browser/storage_partition.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/uninstall_reason.h"
@@ -302,10 +301,7 @@
       ExtensionInstallPrompt::EXTERNAL_INSTALL_PROMPT));
 
   webstore_data_fetcher_.reset(new WebstoreDataFetcher(
-      this,
-      content::BrowserContext::GetDefaultStoragePartition(browser_context_)->
-          GetURLRequestContext(),
-      GURL(), extension_id_));
+      this, browser_context_->GetRequestContext(), GURL(), extension_id_));
   webstore_data_fetcher_->Start();
 }