Fix few compilation errors on Windows in media/ during Windows GN build.

media/mojo/services/mojo_cdm.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_MOJO_SERVICES_MOJO_CDM_H_
 #define MEDIA_MOJO_SERVICES_MOJO_CDM_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "media/base/media_keys.h"
@@ skipping 56 matching lines @@
                       uint32_t system_code,
                       const mojo::String& error_message) final;
   void OnSessionKeysChange(
       const mojo::String& session_id,
       bool has_additional_usable_key,
       mojo::Array<mojo::CdmKeyInformationPtr> keys_info) final;
   void OnSessionExpirationUpdate(const mojo::String& session_id,
                                  int64_t new_expiry_time_usec) final;
 
   // Callbacks to handle CDM promises.
+  // We have to inline this method, since MS VS 2013 compiler fails to compile
+  // it when this method is not inlined. It fails with error C2244
+  // "unable to match function definition to an existing declaration".
   template <typename... T>
   void OnPromiseResult(scoped_ptr<CdmPromiseTemplate<T...>> promise,
                        mojo::CdmPromiseResultPtr result,
-                       typename MojoTypeTrait<T>::MojoType... args);
+                       typename MojoTypeTrait<T>::MojoType... args) {
+    if (result->success)
+      promise->resolve(args.template To<T>()...);  // See ISO C++03 14.2/4.
+    else
+      RejectPromise(promise.Pass(), result.Pass());
+  }
 
   mojo::ContentDecryptionModulePtr remote_cdm_;
 
   // Callbacks for firing session events.
   SessionMessageCB session_message_cb_;
   SessionClosedCB session_closed_cb_;
   SessionErrorCB session_error_cb_;
   SessionKeysChangeCB session_keys_change_cb_;
   SessionExpirationUpdateCB session_expiration_update_cb_;
 
   base::WeakPtrFactory<MojoCdm> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoCdm);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_SERVICES_MOJO_CDM_H_