Add GetLog method call to DebugDaemonClient

chromeos/dbus/debug_daemon_client.h

 // Copyright (c) 2012 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 CHROMEOS_DBUS_DEBUG_DAEMON_CLIENT_H_
 #define CHROMEOS_DBUS_DEBUG_DAEMON_CLIENT_H_
 
 #include <stdint.h>
 #include <sys/types.h>
 
@@ skipping 111 matching lines @@
   // returned directly from D-Bus. These logs will include ARC and cheets
   // system information.
   virtual void GetScrubbedBigLogs(const GetLogsCallback& callback) = 0;
 
   // Gets all logs collected by debugd.
   virtual void GetAllLogs(const GetLogsCallback& callback) = 0;
 
   // Gets list of user log files that must be read by Chrome.
   virtual void GetUserLogFiles(const GetLogsCallback& callback) = 0;
 
+  // Gets an individual log source provided by debugd.
+  virtual void GetLog(const std::string& log_name,
+                      const GetLogsCallback& callback) = 0;
+
   virtual void SetStopAgentTracingTaskRunner(
       scoped_refptr<base::TaskRunner> task_runner) = 0;
 
   // Returns an empty StopAgentTracingCallback that does nothing.
   static StopAgentTracingCallback EmptyStopAgentTracingCallback();
 
   // Called once TestICMP() is complete. Takes two parameters:
   // - succeeded: information was obtained successfully.
   // - status: information about ICMP connectivity to a specified host as json.
   //   For details please refer to
@@ skipping 115 matching lines @@
   // Create() should be used instead.
   DebugDaemonClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DebugDaemonClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_DEBUG_DAEMON_CLIENT_H_