mandoline filesystem: add a sqlite3 vfs to proxy filesystem usage.

components/filesystem/files_test_base.h

Index: components/filesystem/files_test_base.h
diff --git a/components/filesystem/files_test_base.h b/components/filesystem/files_test_base.h
index 36e15d526e7cf65ff5acc7c5ae276056fa742421..bc9a9a311bd898dfc9cbbfa33ca8beeea3b2ff7e 100644
--- a/components/filesystem/files_test_base.h
+++ b/components/filesystem/files_test_base.h
@@ -11,73 +11,6 @@
 
 namespace filesystem {
 
-// TODO(vtl): Stuff copied from mojo/public/cpp/bindings/lib/template_util.h.
-template <class T, T v>
-struct IntegralConstant {
-  static const T value = v;
-};
-
-template <class T, T v>
-const T IntegralConstant<T, v>::value;
-
-typedef IntegralConstant<bool, true> TrueType;
-typedef IntegralConstant<bool, false> FalseType;
-
-template <class T>
-struct IsConst : FalseType {};
-template <class T>
-struct IsConst<const T> : TrueType {};
-
-template <bool B, typename T = void>
-struct EnableIf {};
-
-template <typename T>
-struct EnableIf<true, T> {
-  typedef T type;
-};
-
-typedef char YesType;
-
-struct NoType {
-  YesType dummy[2];
-};
-
-template <typename T>
-struct IsMoveOnlyType {
-  template <typename U>
-  static YesType Test(const typename U::MoveOnlyTypeForCPP03*);
-
-  template <typename U>
-  static NoType Test(...);
-
-  static const bool value =
-      sizeof(Test<T>(0)) == sizeof(YesType) && !IsConst<T>::value;
-};
-
-template <typename T>
-typename EnableIf<!IsMoveOnlyType<T>::value, T>::type& Forward(T& t) {
-  return t;
-}
-
-template <typename T>
-typename EnableIf<IsMoveOnlyType<T>::value, T>::type Forward(T& t) {
-  return t.Pass();
-}
-// TODO(vtl): (End of stuff copied from template_util.h.)
-
-template <typename T1>
-mojo::Callback<void(T1)> Capture(T1* t1) {
-  return [t1](T1 got_t1) { *t1 = Forward(got_t1); };
-}
-
-template <typename T1, typename T2>
-mojo::Callback<void(T1, T2)> Capture(T1* t1, T2* t2) {
-  return [t1, t2](T1 got_t1, T2 got_t2) {
-    *t1 = Forward(got_t1);
-    *t2 = Forward(got_t2);
-  };
-}
-
 class FilesTestBase : public mojo::test::ApplicationTestBase {
  public:
   FilesTestBase();