Change ScopedPtr(Hash)Map to make qualified calls to ignore_result().

base/containers/scoped_ptr_map_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/containers/scoped_ptr_map.h"
 
 #include <functional>
 #include <map>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 namespace {
 
+namespace namespace_with_ignore_result {
+
+class Value {};
+
+template <typename T>
+void ignore_result(const T&) {}
+
+}  // namespace namespace_with_ignore_result
+
 // A ScopedDestroyer sets a Boolean to true upon destruction.
 class ScopedDestroyer {
  public:
   ScopedDestroyer(bool* destroyed) : destroyed_(destroyed) {
     *destroyed_ = false;
   }
 
   ~ScopedDestroyer() { *destroyed_ = true; }
 
  private:
@@ skipping 215 matching lines @@
 
   ScopedPtrMap<int, scoped_ptr<ScopedDestroyer>> result = callback.Run();
   EXPECT_TRUE(scoped_map.empty());
   EXPECT_EQ(elem, result.find(0)->second);
   EXPECT_FALSE(destroyed);
 
   result.clear();
   EXPECT_TRUE(destroyed);
 };
 
+// Test that using a value type from a namespace containing an ignore_result
+// function compiles correctly.
+TEST(ScopedPtrMapTest, IgnoreResultCompile) {
+  ScopedPtrMap<int, scoped_ptr<namespace_with_ignore_result::Value>> scoped_map;
+  scoped_map.insert(1,
+                    make_scoped_ptr(new namespace_with_ignore_result::Value));
+}
+
 }  // namespace
 }  // namespace base