ScopedPtrMap: Added Compare template parameter.

base/containers/scoped_ptr_map_unittest.cc

Index: base/containers/scoped_ptr_map_unittest.cc
diff --git a/base/containers/scoped_ptr_map_unittest.cc b/base/containers/scoped_ptr_map_unittest.cc
index ef70440f758121ca82601ff0692e74c39351cd4a..1d8f179b0675e759c5a818062d3a62db68da0fd4 100644
--- a/base/containers/scoped_ptr_map_unittest.cc
+++ b/base/containers/scoped_ptr_map_unittest.cc
@@ -4,6 +4,7 @@
 
 #include "base/containers/scoped_ptr_map.h"
 
+#include <functional>
 #include <map>
 #include <utility>
 
@@ -143,6 +144,19 @@ TEST(ScopedPtrMapTest, Clear) {
   EXPECT_TRUE(scoped_map.empty());
 }
 
+TEST(ScopedPtrMapTest, Compare) {
+  // Construct a ScopedPtrMap with a custom comparison function.
+  bool destroyed = false;
+  ScopedPtrMap<int, scoped_ptr<ScopedDestroyer>, std::greater<int>> scoped_map;
+  scoped_map.insert(0, make_scoped_ptr(new ScopedDestroyer(&destroyed)));
+  scoped_map.insert(1, make_scoped_ptr(new ScopedDestroyer(&destroyed)));
+
+  auto it = scoped_map.begin();
+  EXPECT_EQ(1, it->first);
+  ++it;
+  EXPECT_EQ(0, it->first);
+}
+
 TEST(ScopedPtrMapTest, Scope) {
   bool destroyed = false;
   {