Creates a BattOrConnection for communicating with the BattOr

tools/battor_agent/battor_agent.h

Index: tools/battor_agent/battor_agent.h
diff --git a/tools/battor_agent/battor_agent.h b/tools/battor_agent/battor_agent.h
index 413890e4ec2294e531167d79c086b00a65c87f6b..d09e0af9b32448505ed4fae0d8b64858410844ca 100644
--- a/tools/battor_agent/battor_agent.h
+++ b/tools/battor_agent/battor_agent.h
@@ -10,12 +10,9 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
+#include "tools/battor_agent/battor_connection.h"
 #include "tools/battor_agent/battor_error.h"
 
-namespace device {
-class SerialIoHandler;
-}
-
 namespace battor {
 
 // A BattOrAgent is a class used to asynchronously communicate with a BattOr for
@@ -43,7 +40,7 @@ class BattOrAgent : public base::SupportsWeakPtr<BattOrAgent> {
 
   BattOrAgent(
       scoped_refptr<base::SingleThreadTaskRunner> file_thread_task_runner,
-      scoped_refptr<base::SingleThreadTaskRunner> ui_thread_task_rnuner,
+      scoped_refptr<base::SingleThreadTaskRunner> ui_thread_task_runner,
       const std::string& path,
       Listener* listener);
   virtual ~BattOrAgent();
@@ -81,8 +78,8 @@ class BattOrAgent : public base::SupportsWeakPtr<BattOrAgent> {
   // The listener that handles the commands' results. It must outlive the agent.
   Listener* listener_;
 
-  // IO handler capable of reading and writing from the serial connection.
-  scoped_refptr<device::SerialIoHandler> io_handler_;
+  // The serial connection to the BattOr.
+  scoped_ptr<BattOrConnection> connection_;
 
   // Checker to make sure that this is only ever called on the IO thread.
   base::ThreadChecker thread_checker_;