Make MountPointProvider pluggable from outside webkit/fileapi

webkit/fileapi/obfuscated_file_util_unittest.cc

Index: webkit/fileapi/obfuscated_file_util_unittest.cc
diff --git a/webkit/fileapi/obfuscated_file_util_unittest.cc b/webkit/fileapi/obfuscated_file_util_unittest.cc
index 98472a5b135c939b4822aded503ec484a430756d..7e3b57f8ea09ae345ed13bdf30b65bfd9b612718 100644
--- a/webkit/fileapi/obfuscated_file_util_unittest.cc
+++ b/webkit/fileapi/obfuscated_file_util_unittest.cc
@@ -17,6 +17,7 @@
 #include "webkit/fileapi/async_file_test_helper.h"
 #include "webkit/fileapi/external_mount_points.h"
 #include "webkit/fileapi/file_system_context.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_usage_cache.h"
@@ -143,9 +144,9 @@ class ObfuscatedFileUtilTest : public testing::Test {
     // another OFU.  We need to pass in the context to skip all that.
     file_system_context_ = new FileSystemContext(
         FileSystemTaskRunners::CreateMockTaskRunners(),
-        ExternalMountPoints::CreateRefCounted().get(),
-        storage_policy,
         quota_manager_->proxy(),
+        ScopedVector<FileSystemMountPointProvider>(),
+        std::vector<MountPoints*>(),
         data_dir_.path(),
         CreateAllowFileAccessOptions());