Reland Refactor FakeAttachmentStore

sync/internal_api/attachments/attachment_service_impl_unittest.cc

Index: sync/internal_api/attachments/attachment_service_impl_unittest.cc
diff --git a/sync/internal_api/attachments/attachment_service_impl_unittest.cc b/sync/internal_api/attachments/attachment_service_impl_unittest.cc
index 85bbb6a9a8d2671919e06a1db6d80779ff64bc2c..e802e2b6cf0308274bb4e739db35616af5f3bf47 100644
--- a/sync/internal_api/attachments/attachment_service_impl_unittest.cc
+++ b/sync/internal_api/attachments/attachment_service_impl_unittest.cc
@@ -16,6 +16,8 @@
 
 namespace syncer {
 
+namespace {
+
 class MockAttachmentStore : public AttachmentStore,
                             public base::SupportsWeakPtr<MockAttachmentStore> {
  public:
@@ -150,6 +152,8 @@ class MockAttachmentUploader
   DISALLOW_COPY_AND_ASSIGN(MockAttachmentUploader);
 };
 
+}  // namespace
+
 class AttachmentServiceImplTest : public testing::Test,
                                   public AttachmentService::Delegate {
  protected: