Cleanup style nits in metrics daemon.

metrics_library.cc

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "metrics_library.h"
 
 #include <errno.h>
 #include <sys/file.h>
 
 #include <cstdarg>
 #include <cstdio>
 #include <cstring>
 
 #define READ_WRITE_ALL_FILE_FLAGS \
   (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)
 
 static const char kAutotestPath[] =
     "/var/log/metrics/autotest-events";
 static const char kUMAEventsPath[] =
     "/var/log/metrics/uma-events";
 static const int32_t kBufferSize = 1024;
 
-using namespace std;
+using std::string;
 
 // TODO(sosa@chromium.org) - use Chromium logger instead of stderr
 static void PrintError(const char* message, const char* file,
                        int code) {
-  static const char *kProgramName = "libmetrics";
+  static const char kProgramName[] = "libmetrics";
   if (code == 0) {
     fprintf(stderr, "%s: %s\n", kProgramName, message);
   } else if (file == NULL) {
     fprintf(stderr, "%s: ", kProgramName);
     perror(message);
   } else {
     fprintf(stderr, "%s: %s: ", kProgramName, file);
     perror(message);
   }
 }
@@ skipping 67 matching lines @@
   // Prepend LENGTH to the message.
   memcpy(buffer, &message_length, len_size);
   return message_length;
 }
 
 void MetricsLibrary::Init() {
   uma_events_file_ = kUMAEventsPath;
 }
 
 bool MetricsLibrary::SendToAutotest(const string& name, int value) {
-  FILE *autotest_file = fopen(kAutotestPath, "a+");
+  FILE* autotest_file = fopen(kAutotestPath, "a+");
   if (autotest_file == NULL) {
     PrintError("fopen", kAutotestPath, errno);
     return false;
   }
 
   fprintf(autotest_file, "%s=%d\n", name.c_str(), value);
   fclose(autotest_file);
   return true;
 }
 
@@ skipping 21 matching lines @@
       FormatChromeMessage(kBufferSize, message,
                           "linearhistogram%c%s %d %d", '\0',
                           name.c_str(), sample, max);
 
   if (message_length < 0)
     return false;
 
   // Send the message.
   return SendMessageToChrome(message_length, message);
 }