Separate MediaKeys interface from Decryptor interface.

media/base/media_keys.cc

Index: media/base/media_keys.cc
diff --git a/media/base/android/media_resource_getter.cc b/media/base/media_keys.cc
similarity index 67%
copy from media/base/android/media_resource_getter.cc
copy to media/base/media_keys.cc
index 5fdff06b94662f524418a767dfca9cc4417be537..df6dfc5c9818cdaed82e051926a3199d579e1688 100644
--- a/media/base/android/media_resource_getter.cc
+++ b/media/base/media_keys.cc
@@ -2,10 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "media/base/android/media_resource_getter.h"
+#include "media/base/media_keys.h"
 
 namespace media {
 
-MediaResourceGetter::~MediaResourceGetter() {}
+MediaKeys::MediaKeys() {}
+
+MediaKeys::~MediaKeys() {}
 
 }  // namespace media