Remove base::ScopedPtrHashMap from media/.

media/base/cdm_promise_adapter.h

 // Copyright 2014 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 MEDIA_BASE_CDM_PROMISE_ADAPTER_H_
 #define MEDIA_BASE_CDM_PROMISE_ADAPTER_H_
 
 #include <stdint.h>
 
 #include <memory>
+#include <unordered_map>
 
-#include "base/containers/scoped_ptr_hash_map.h"
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "media/base/cdm_promise.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 // Helps convert CdmPromises to an integer identifier and vice versa. The
 // integer identifier is needed where we cannot pass CdmPromises through, such
 // as PPAPI, IPC and JNI.
@@ skipping 14 matching lines @@
   // |system_code| and |error_message|.
   void RejectPromise(uint32_t promise_id,
                      CdmPromise::Exception exception_code,
                      uint32_t system_code,
                      const std::string& error_message);
 
   // Rejects and clears all |promises_|.
   void Clear();
 
  private:
-  // A map between promise IDs and CdmPromises. It owns the CdmPromises.
-  typedef base::ScopedPtrHashMap<uint32_t, std::unique_ptr<CdmPromise>>
-      PromiseMap;
+  // A map between promise IDs and CdmPromises.
+  using PromiseMap = std::unordered_map<uint32_t, std::unique_ptr<CdmPromise>>;
 
   // Finds, takes the ownership of and returns the promise for |promise_id|.
   // Returns null if no promise can be found.
   std::unique_ptr<CdmPromise> TakePromise(uint32_t promise_id);
 
   uint32_t next_promise_id_;
   PromiseMap promises_;
 
   base::ThreadChecker thread_checker_;
   DISALLOW_COPY_AND_ASSIGN(CdmPromiseAdapter);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_CDM_PROMISE_ADAPTER_H_