Add CdmFileIOProvider interface for use by cdm_adapter

media/cdm/aes_decryptor_unittest.cc

Index: media/cdm/aes_decryptor_unittest.cc
diff --git a/media/cdm/aes_decryptor_unittest.cc b/media/cdm/aes_decryptor_unittest.cc
index 47ed0ab57cd4e45a9b6fc3a4baebee5e4384b32c..4472afe07de8e471b1836f34f7484b89d0a2d6be 100644
--- a/media/cdm/aes_decryptor_unittest.cc
+++ b/media/cdm/aes_decryptor_unittest.cc
@@ -2,8 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include <stdint.h>
+#include "media/cdm/aes_decryptor.h"
 
+#include <stdint.h>
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -19,9 +21,9 @@
 #include "media/base/decrypt_config.h"
 #include "media/base/decryptor.h"
 #include "media/base/mock_filters.h"
-#include "media/cdm/aes_decryptor.h"
 #include "media/cdm/api/content_decryption_module.h"
 #include "media/cdm/cdm_adapter.h"
+#include "media/cdm/cdm_file_io.h"
 #include "media/cdm/external_clear_key_test_helper.h"
 #include "media/cdm/simple_cdm_allocator.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ -248,8 +250,10 @@ class AesDecryptorTest : public testing::TestWithParam<std::string> {
       scoped_ptr<CdmAllocator> allocator(new SimpleCdmAllocator());
       CdmAdapter::Create(
           helper_->KeySystemName(), helper_->LibraryPath(), cdm_config,
-          std::move(allocator), base::Bind(&AesDecryptorTest::OnSessionMessage,
+          std::move(allocator), base::Bind(&AesDecryptorTest::CreateCdmFileIO,
                                            base::Unretained(this)),
+          base::Bind(&AesDecryptorTest::OnSessionMessage,
+                     base::Unretained(this)),
           base::Bind(&AesDecryptorTest::OnSessionClosed,
                      base::Unretained(this)),
           base::Bind(&AesDecryptorTest::OnLegacySessionError,
@@ -455,6 +459,11 @@ class AesDecryptorTest : public testing::TestWithParam<std::string> {
     }
   }
 
+  std::unique_ptr<CdmFileIO> CreateCdmFileIO(cdm::FileIOClient* client) {
+    ADD_FAILURE() << "Should never be called";
+    return nullptr;
+  }
+
   MOCK_METHOD4(OnSessionMessage,
                void(const std::string& session_id,
                     MediaKeys::MessageType message_type,