Stack sampling profiler: handle unloaded and unloading modules

base/scoped_native_library_unittest.cc

Index: base/scoped_native_library_unittest.cc
diff --git a/base/scoped_native_library_unittest.cc b/base/scoped_native_library_unittest.cc
index 035faa03f741119029ecafc278a979b30d6e53d3..c7e44892d06e63780d2dab1b1b7d8e1cc140108d 100644
--- a/base/scoped_native_library_unittest.cc
+++ b/base/scoped_native_library_unittest.cc
@@ -28,6 +28,8 @@ TEST(ScopedNativeLibrary, Basic) {
     FilePath path(GetNativeLibraryName(L"ddraw"));
     native_library = LoadNativeLibrary(path, NULL);
     ScopedNativeLibrary library(native_library);
+    EXPECT_TRUE(library.is_valid());
+    EXPECT_EQ(native_library, library.get());
     FARPROC test_function =
         reinterpret_cast<FARPROC>(library.GetFunctionPointer(kFunctionName));
     EXPECT_EQ(0, IsBadCodePtr(test_function));