tools/battor_agent: Prints real BattOr samples instead of raw ones

tools/battor_agent/battor_agent.h

 // Copyright 2015 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 TOOLS_BATTOR_AGENT_BATTOR_AGENT_H_
 #define TOOLS_BATTOR_AGENT_BATTOR_AGENT_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 95 matching lines @@
   void BeginConnect();
 
   // Sends a control message over the connection.
   void SendControlMessage(BattOrControlMessageType type,
                           uint16_t param1,
                           uint16_t param2);
 
   // Completes the command with the specified error.
   void CompleteCommand(BattOrError error);
 
+  // Returns a formatted version of samples_ with timestamps and real units.
+  std::string SamplesToString();
+
   // The listener that handles the commands' results. It must outlive the agent.
   Listener* listener_;
 
   // The last action executed by the agent. This should only be updated in
   // PerformAction().
   Action last_action_;
 
   // The tracing command currently being executed by the agent.
   Command command_;
 
@@ skipping 11 matching lines @@
 
   // The number of times that we've attempted to read the last message.
   uint8_t num_read_attempts_;
 
   DISALLOW_COPY_AND_ASSIGN(BattOrAgent);
 };
 
 }  // namespace battor
 
 #endif  // TOOLS_BATTOR_AGENT_BATTOR_AGENT_H_