Combine boolean MediaDeviceNotifications histograms to an enumerated histogram.

chrome/browser/system_monitor/media_storage_util.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.
 
 // chrome::MediaStorageUtil provides information about storage devices attached
 // to the computer.
 
 #ifndef CHROME_BROWSER_SYSTEM_MONITOR_MEDIA_STORAGE_UTIL_H_
 #define CHROME_BROWSER_SYSTEM_MONITOR_MEDIA_STORAGE_UTIL_H_
 
@@ skipping 57 matching lines @@
   static bool GetDeviceInfoFromPath(const FilePath& path,
                                     std::string* device_id,
                                     string16* device_name,
                                     FilePath* relative_path);
 
   // Get a FilePath for the given |device_id|.  If the device isn't a mass
   // storage type, the FilePath will be empty.  This does not check that
   // the device is connected.
   static FilePath FindDevicePathById(const std::string& device_id);
 
+  // Record device information histogram for the given |device_uuid| and
+  // |device_name|. Set |mass_storage| to true, if the current device is a
+  // removable mass storage device else false.
+  static void RecordDeviceInfoHistogram(bool mass_storage,
+                                        const std::string& device_uuid,
+                                        const string16& device_name);
+
  protected:
   typedef bool (*GetDeviceInfoFromPathFunction)(const FilePath& path,
                                                 std::string* device_id,
                                                 string16* device_name,
                                                 FilePath* relative_path);
 
   // Set the implementation of GetDeviceInfoFromPath for testing.
   static void SetGetDeviceInfoFromPathFunctionForTesting(
       GetDeviceInfoFromPathFunction function);
 
  private:
   // All methods are static, this class should not be instantiated.
   MediaStorageUtil();
 
   DISALLOW_COPY_AND_ASSIGN(MediaStorageUtil);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_SYSTEM_MONITOR_MEDIA_STORAGE_UTIL_H_