Allow std::unordered_*.

ui/gfx/generic_shared_memory_id.h

 // 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.
 
 #ifndef UI_GFX_GENERIC_SHARED_MEMORY_ID_H_
 #define UI_GFX_GENERIC_SHARED_MEMORY_ID_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
+#include "base/containers/hash_tables.h"
+#include "base/hash.h"
 #include "base/trace_event/memory_allocator_dump.h"
 #include "ui/gfx/gfx_export.h"
 
 namespace gfx {
 
 // Defines an ID type which is used across all types of shared memory
 // allocations in content/. This ID type is in ui/gfx, as components outside
 // content/ may need to hold an ID (but should not generate one).
 class GFX_EXPORT GenericSharedMemoryId {
  public:
@@ skipping 30 matching lines @@
 struct hash<gfx::GenericSharedMemoryId> {
   size_t operator()(gfx::GenericSharedMemoryId key) const {
     return BASE_HASH_NAMESPACE::hash<int>()(key.id);
   }
 };
 
 template <typename Second>
 struct hash<std::pair<gfx::GenericSharedMemoryId, Second>> {
   size_t operator()(
       const std::pair<gfx::GenericSharedMemoryId, Second>& pair) const {
-    return base::HashPair(pair.first.id, pair.second);
+    return base::HashInts(pair.first.id, pair.second);
   }
 };
 
 }  // namespace BASE_HASH_NAMESPACE
 
 #endif  // UI_GFX_GENERIC_SHARED_MEMORY_ID_H_