Pass BrowserContext to drive::MountPointProviderDelegate.

content/browser/fileapi/browser_file_system_helper.h

Index: content/browser/fileapi/browser_file_system_helper.h
diff --git a/content/browser/fileapi/browser_file_system_helper.h b/content/browser/fileapi/browser_file_system_helper.h
index 28e5bc7c8e4ddfdc84be78774a2f5154e1e531f8..7207aded1fce398e608b09a5dc5ae6a5eda57b71 100644
--- a/content/browser/fileapi/browser_file_system_helper.h
+++ b/content/browser/fileapi/browser_file_system_helper.h
@@ -15,20 +15,17 @@ class FileSystemContext;
 class FileSystemURL;
 }
 
-namespace quota {
-class SpecialStoragePolicy;
-}
-
 namespace content {
 
+class BrowserContext;
+
 // Helper method that returns FileSystemContext constructed for
 // the browser process.
 CONTENT_EXPORT 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);
 
 // Check whether a process has permission to access the file system URL.