Align base::hash_map with C++11.

base/containers/hash_tables_unittest.cc

Index: base/containers/hash_tables_unittest.cc
diff --git a/base/containers/hash_tables_unittest.cc b/base/containers/hash_tables_unittest.cc
index 65724ecae224d67c991a685fbf3459df4ee1c5ab..60fbeaabc099c7cd967ac5c6c6409160fa0413cf 100644
--- a/base/containers/hash_tables_unittest.cc
+++ b/base/containers/hash_tables_unittest.cc
@@ -4,6 +4,8 @@
 
 #include "base/containers/hash_tables.h"
 
+#include <string>
+
 #include "base/basictypes.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -50,4 +52,16 @@ TEST_F(HashPairTest, IntegerPairs) {
                    (GG_INT64_C(1) << 60) + GG_INT64_C(78931732321));
 }
 
+// Verify that base::hash_set<const char*> compares by pointer value, not as C
+// strings.
+TEST(HashTableTest, CharPointers) {
+  std::string str1("hello");
+  std::string str2("hello");
+  base::hash_set<const char*> set;
+
+  set.insert(str1.c_str());
+  EXPECT_EQ(1u, set.count(str1.c_str()));
+  EXPECT_EQ(0u, set.count(str2.c_str()));
+}
+
 }  // namespace