Pass BrowserContext to drive::MountPointProviderDelegate.

content/browser/fileapi/browser_file_system_helper.cc

Index: content/browser/fileapi/browser_file_system_helper.cc
diff --git a/content/browser/fileapi/browser_file_system_helper.cc b/content/browser/fileapi/browser_file_system_helper.cc
index 49447405e20ac315d9fac92fa05eac4da2db9c55..fe1aa62d12f378aa8341c9d076b6af3d08e0ce40 100644
--- a/content/browser/fileapi/browser_file_system_helper.cc
+++ b/content/browser/fileapi/browser_file_system_helper.cc
@@ -12,6 +12,7 @@
 #include "base/sequenced_task_runner.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "content/browser/child_process_security_policy_impl.h"
+#include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/content_client.h"
@@ -48,9 +49,9 @@ FileSystemOptions CreateBrowserFileSystemOptions(bool is_incognito) {
 }  // namespace
 
 scoped_refptr<fileapi::FileSystemContext> CreateFileSystemContext(
+    BrowserContext* browser_context,
     const base::FilePath& profile_path,
     bool is_incognito,
-    fileapi::ExternalMountPoints* external_mount_points,
     quota::SpecialStoragePolicy* special_storage_policy,
     quota::QuotaManagerProxy* quota_manager_proxy) {
 
@@ -66,15 +67,15 @@ scoped_refptr<fileapi::FileSystemContext> CreateFileSystemContext(
   // Setting up additional mount point providers.
   ScopedVector<fileapi::FileSystemMountPointProvider> additional_providers;
   GetContentClient()->browser()->GetAdditionalFileSystemMountPointProviders(
+      browser_context,
       profile_path,
       special_storage_policy,
-      external_mount_points,
       &additional_providers);
 
   scoped_refptr<fileapi::FileSystemContext> file_system_context =
       new fileapi::FileSystemContext(
           task_runners.Pass(),
-          external_mount_points,
+          BrowserContext::GetMountPoints(browser_context),
           special_storage_policy,
           quota_manager_proxy,
           additional_providers.Pass(),