buffet: Fixed command state spelling for "cancelled"

GCD spec apparently expects the command status to be spelled as
"cancelled". Fixed...

BUG=brillo:552
TEST=`FEATURES=test emerge-link buffet`

Change-Id: I11a848f2f29ca7d63ce95d130b2a84aa75ced7fd
Reviewed-on: https://chromium-review.googlesource.com/260028
Trybot-Ready: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>

buffet/commands/command_instance.cc

diff --git a/buffet/commands/command_instance.cc b/buffet/commands/command_instance.cc
index 7d54ed7..d39e4a1 100644
--- a/buffet/commands/command_instance.cc
+++ b/buffet/commands/command_instance.cc
@@ -22,7 +22,7 @@
 const char CommandInstance::kStatusPaused[] = "paused";
 const char CommandInstance::kStatusError[] = "error";
 const char CommandInstance::kStatusDone[] = "done";
-const char CommandInstance::kStatusCanceled[] = "canceled";
+const char CommandInstance::kStatusCancelled[] = "cancelled";
 const char CommandInstance::kStatusAborted[] = "aborted";
 const char CommandInstance::kStatusExpired[] = "expired";
 
@@ -182,7 +182,7 @@
 }
 
 void CommandInstance::Cancel() {
-  SetStatus(kStatusCanceled);
+  SetStatus(kStatusCancelled);
   RemoveFromQueue();
   // The command will be destroyed after that, so do not access any members.
 }

buffet/commands/command_instance.h

diff --git a/buffet/commands/command_instance.h b/buffet/commands/command_instance.h
index b3bd2e0..45cf485 100644
--- a/buffet/commands/command_instance.h
+++ b/buffet/commands/command_instance.h
@@ -99,7 +99,7 @@
   static const char kStatusPaused[];
   static const char kStatusError[];
   static const char kStatusDone[];
-  static const char kStatusCanceled[];
+  static const char kStatusCancelled[];
   static const char kStatusAborted[];
   static const char kStatusExpired[];
 

buffet/commands/dbus_command_proxy_unittest.cc

diff --git a/buffet/commands/dbus_command_proxy_unittest.cc b/buffet/commands/dbus_command_proxy_unittest.cc
index e750ddb..ff351ba 100644
--- a/buffet/commands/dbus_command_proxy_unittest.cc
+++ b/buffet/commands/dbus_command_proxy_unittest.cc
@@ -195,7 +195,7 @@
 TEST_F(DBusCommandProxyTest, Cancel) {
   EXPECT_CALL(*mock_exported_object_command_, SendSignal(_)).Times(1);
   GetCommandInterface()->Cancel();
-  EXPECT_EQ(CommandInstance::kStatusCanceled,
+  EXPECT_EQ(CommandInstance::kStatusCancelled,
             GetCommandAdaptor()->GetStatus());
 }