Implements the element_type typedef in testing::internal::scoped_ptr. This is needed to test gmock's IsNull/NotNull with it.

include/gtest/internal/gtest-port.h

@@ -589,6 +589,8 @@ bool IsTrue(bool condition);
 template <typename T>
 class scoped_ptr {
  public:
+  typedef T element_type;
+
   explicit scoped_ptr(T* p = NULL) : ptr_(p) {}
   ~scoped_ptr() { reset(); }
 

test/gtest-port_test.cc

@@ -53,6 +53,14 @@
 namespace testing {
 namespace internal {
 
+// Tests that the element_type typedef is available in scoped_ptr and refers
+// to the parameter type.
+TEST(ScopedPtrTest, DefinesElementType) {
+  StaticAssertTypeEq<int, ::testing::internal::scoped_ptr<int>::element_type>();
+}
+
+// TODO(vladl@google.com): Implement THE REST of scoped_ptr tests.
+
 TEST(GtestCheckSyntaxTest, BehavesLikeASingleStatement) {
   if (AlwaysFalse())
     GTEST_CHECK_(false) << "This should never be executed; "