Add allocator interface for use by cdm_adapter

media/cdm/simple_cdm_buffer.h

Index: media/cdm/simple_cdm_buffer.h
diff --git a/media/cdm/cdm_buffer_impl.h b/media/cdm/simple_cdm_buffer.h
similarity index 69%
rename from media/cdm/cdm_buffer_impl.h
rename to media/cdm/simple_cdm_buffer.h
index b3dcb13e1171bcdae523fed64708cfcc56405df4..b48fec517abfcba3f41e868988461a5ce770206f 100644
--- a/media/cdm/cdm_buffer_impl.h
+++ b/media/cdm/simple_cdm_buffer.h
@@ -2,11 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MEDIA_CDM_CDM_BUFFER_IMPL_H_
-#define MEDIA_CDM_CDM_BUFFER_IMPL_H_
+#ifndef MEDIA_CDM_SIMPLE_CDM_BUFFER_H_
+#define MEDIA_CDM_SIMPLE_CDM_BUFFER_H_
 
 #include <stdint.h>
-
 #include <vector>
 
 #include "base/macros.h"
@@ -16,9 +15,9 @@ namespace media {
 
 // cdm::Buffer implementation that provides access to memory. This is a simple
 // implementation that stores the data in a std::vector<uint8_t>.
-class CdmBuffer : public cdm::Buffer {
+class SimpleCdmBuffer : public cdm::Buffer {
  public:
-  static CdmBuffer* Create(uint32_t capacity);
+  static SimpleCdmBuffer* Create(uint32_t capacity);
 
   // cdm::Buffer implementation.
   void Destroy() final;
@@ -28,15 +27,15 @@ class CdmBuffer : public cdm::Buffer {
   uint32_t Size() const final;
 
  private:
-  CdmBuffer(uint32_t capacity);
-  ~CdmBuffer() final;
+  SimpleCdmBuffer(uint32_t capacity);
+  ~SimpleCdmBuffer() final;
 
   std::vector<uint8_t> buffer_;
   uint32_t size_;
 
-  DISALLOW_COPY_AND_ASSIGN(CdmBuffer);
+  DISALLOW_COPY_AND_ASSIGN(SimpleCdmBuffer);
 };
 
 }  // namespace media
 
-#endif
+#endif  // MEDIA_CDM_SIMPLE_CDM_BUFFER_H_