[Chromoting.com] Make Android telemetry report host version/os/os version

remoting/client/client_telemetry_logger.h

Index: remoting/client/client_telemetry_logger.h
diff --git a/remoting/client/client_telemetry_logger.h b/remoting/client/client_telemetry_logger.h
index 3f7445afd621ba98ed3da90e5ba4910daa57421e..9cfbb093116590666a336bf6aa32bede793c028a 100644
--- a/remoting/client/client_telemetry_logger.h
+++ b/remoting/client/client_telemetry_logger.h
@@ -22,11 +22,18 @@ namespace remoting {
 // ClientTelemetryLogger sends client log entries to the telemetry server.
 // The logger should be run entirely on one single thread.
 // TODO(yuweih): Implement new features that session_logger.js provides.
+// TODO(BUG 680752): Refactor this so that it's bound to only one session.
 class ClientTelemetryLogger {
  public:
   explicit ClientTelemetryLogger(ChromotingEvent::Mode mode);
   ~ClientTelemetryLogger();
 
+  // Sets the host info to be posted along with other log data. By default
+  // no host info will be logged.
+  void SetHostInfo(const std::string& host_version,
+                   ChromotingEvent::Os host_os,
+                   const std::string& host_os_version);
+
   // Start must be called before posting logs or setting auth token or closure.
   void Start(std::unique_ptr<UrlRequestFactory> request_factory,
              const std::string& telemetry_base_url);
@@ -65,6 +72,7 @@ class ClientTelemetryLogger {
       protocol::ErrorCode state);
 
  private:
+  struct HostInfo;
 
   void FillEventContext(ChromotingEvent* event) const;
 
@@ -92,6 +100,8 @@ class ClientTelemetryLogger {
 
   ChromotingEvent::Mode mode_;
 
+  std::unique_ptr<HostInfo> host_info_;
+
   // The log writer that actually sends log to the server.
   std::unique_ptr<ChromotingEventLogWriter> log_writer_;