Use std::vector<uint8_t> instead of uint8*/int for MediaKeys interface

media/mojo/services/mojo_cdm_service.cc

Index: media/mojo/services/mojo_cdm_service.cc
diff --git a/media/mojo/services/mojo_cdm_service.cc b/media/mojo/services/mojo_cdm_service.cc
index 58c335d220d869e0d74840f0f8cadfeac4875536..b92d9f8748ff981f1563901af470fc3c484bb615 100644
--- a/media/mojo/services/mojo_cdm_service.cc
+++ b/media/mojo/services/mojo_cdm_service.cc
@@ -47,11 +47,8 @@ void MojoCdmService::SetClient(mojo::ContentDecryptionModuleClientPtr client) {
 void MojoCdmService::SetServerCertificate(
     mojo::Array<uint8_t> certificate_data,
     const mojo::Callback<void(mojo::CdmPromiseResultPtr)>& callback) {
-  const std::vector<uint8_t>& certificate_data_vector =
-      certificate_data.storage();
   cdm_->SetServerCertificate(
-      certificate_data_vector.empty() ? nullptr : &certificate_data_vector[0],
-      certificate_data_vector.size(),
+      certificate_data.storage(),
       scoped_ptr<SimpleCdmPromise>(new SimpleMojoCdmPromise(callback)));
 }
 
@@ -61,12 +58,9 @@ void MojoCdmService::CreateSessionAndGenerateRequest(
     mojo::Array<uint8_t> init_data,
     const mojo::Callback<void(mojo::CdmPromiseResultPtr, mojo::String)>&
         callback) {
-  const std::vector<uint8_t>& init_data_vector = init_data.storage();
   cdm_->CreateSessionAndGenerateRequest(
       static_cast<MediaKeys::SessionType>(session_type),
-      static_cast<EmeInitDataType>(init_data_type),
-      init_data_vector.empty() ? nullptr : &init_data_vector[0],
-      init_data_vector.size(),
+      static_cast<EmeInitDataType>(init_data_type), init_data.storage(),
       scoped_ptr<NewSessionCdmPromise>(new NewSessionMojoCdmPromise(callback)));
 }
 
@@ -85,11 +79,8 @@ void MojoCdmService::UpdateSession(
     const mojo::String& session_id,
     mojo::Array<uint8_t> response,
     const mojo::Callback<void(mojo::CdmPromiseResultPtr)>& callback) {
-  const std::vector<uint8_t>& response_vector = response.storage();
   cdm_->UpdateSession(
-      session_id.To<std::string>(),
-      response_vector.empty() ? nullptr : &response_vector[0],
-      response_vector.size(),
+      session_id.To<std::string>(), response.storage(),
       scoped_ptr<SimpleCdmPromise>(new SimpleMojoCdmPromise(callback)));
 }