Make MountPointProvider pluggable from outside webkit/fileapi

webkit/blob/blob_url_request_job_unittest.cc

Index: webkit/blob/blob_url_request_job_unittest.cc
diff --git a/webkit/blob/blob_url_request_job_unittest.cc b/webkit/blob/blob_url_request_job_unittest.cc
index b6f66db5e035ef1d5cc55da133be13b63310632c..ee2b1f808bbbd1cfa44df6c1a5d2f58259a78ba0 100644
--- a/webkit/blob/blob_url_request_job_unittest.cc
+++ b/webkit/blob/blob_url_request_job_unittest.cc
@@ -22,6 +22,7 @@
 #include "webkit/fileapi/external_mount_points.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_file_util.h"
+#include "webkit/fileapi/file_system_mount_point_provider.h"
 #include "webkit/fileapi/file_system_operation_context.h"
 #include "webkit/fileapi/file_system_task_runners.h"
 #include "webkit/fileapi/file_system_url.h"
@@ -171,9 +172,9 @@ class BlobURLRequestJobTest : public testing::Test {
     // Prepare file system.
     file_system_context_ = new fileapi::FileSystemContext(
         fileapi::FileSystemTaskRunners::CreateMockTaskRunners(),
-        fileapi::ExternalMountPoints::CreateRefCounted().get(),
-        NULL,
         NULL,
+        ScopedVector<fileapi::FileSystemMountPointProvider>(),
+        std::vector<fileapi::MountPoints*>(),
         temp_dir_.path(),
         fileapi::CreateDisallowFileAccessOptions());