tree c71d9318a292eb0ce06ba624cbf8be3088c461ac
parent 618fa6394afe2a12edc0ba290bd3548ff14fe026
author Edwin Kempin <ekempin@google.com> 1576239827 +0100
committer Edwin Kempin <ekempin@google.com> 1576246967 +0100

Make EmailArguments a singleton

Most of the things that get injected into EmailArguments are singletons
themselves, the others can be turned into providers. Making
EmailArguments a singleton prevents that we have to create a new
instance of this class whenever an email is sent.

Change-Id: I2459a3ea79d94d8ba8203a385cfcca8bb99cfeaf
Signed-off-by: Edwin Kempin <ekempin@google.com>