Bluetooth: gather usage metrics

chrome/common/metrics/proto/system_profile.proto

 // 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.
 //
 // Stores information about the user's brower and system configuration.
 // The system configuration fields are recorded once per client session.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
@@ skipping 60 matching lines @@
     optional string name = 1;
 
     // The version of the OS.  The meaning of this field is OS-dependent.
     optional string version = 2;
 
     // The fingerprint of the build.  This field is used only on Android.
     optional string fingerprint = 3;
   }
   optional OS os = 5;
 
-  // Next tag for Hardware: 13
+  // Next tag for Hardware: 14
   // Information on the user's hardware.
   message Hardware {
     // The CPU architecture (x86, PowerPC, x86_64, ...)
     optional string cpu_architecture = 1;
 
     // The amount of RAM present on the system, in megabytes.
     optional int64 system_ram_mb = 2;
 
     // The base memory address that chrome.dll was loaded at.
     // (Logged only on Windows.)
@@ skipping 40 matching lines @@
 
       // The GPU performance statistics.
       // See http://src.chromium.org/viewvc/chrome/trunk/src/content/public/common/gpu_performance_stats.h?view=markup
       // for details.  Currently logged only on Windows.
       message PerformanceStatistics {
         optional float graphics_score = 1;
         optional float gaming_score = 2;
         optional float overall_score = 3;
       }
       optional PerformanceStatistics performance_statistics = 5;
-      
-      // The GL_VENDOR string. An example of a gl_vendor string is 
+
+      // The GL_VENDOR string. An example of a gl_vendor string is
       // "Imagination Technologies". "" if we are not using OpenGL.
       optional string gl_vendor = 6;
-      
-      // The GL_RENDERER string. An example of a gl_renderer string is 
+
+      // The GL_RENDERER string. An example of a gl_renderer string is
       // "PowerVR SGX 540". "" if we are not using OpenGL.
       optional string gl_renderer = 7;
     }
     optional Graphics gpu = 8;
+
+    // Information about Bluetooth devices paired with the system.
+    message Bluetooth {
+      // Whether Bluetooth is present on this system.
+      optional bool is_present = 1;
+
+      // Whether Bluetooth is enabled on this system.
+      optional bool is_enabled = 2;
+
+      // Describes a paired device.
+      message PairedDevice {
+        // Assigned class of the device. This is a bitfield according to the
+        // Bluetooth specification available at the following URL:
+        // https://www.bluetooth.org/en-us/specification/assigned-numbers-overview/baseband
+        optional uint32 bluetooth_class = 1;
+
+        // Decoded device type.
+        enum Type {
+          DEVICE_UNKNOWN = 0;
+          DEVICE_COMPUTER = 1;
+          DEVICE_PHONE = 2;
+          DEVICE_MODEM = 3;
+          DEVICE_AUDIO = 4;
+          DEVICE_CAR_AUDIO = 5;
+          DEVICE_VIDEO = 6;
+          DEVICE_PERIPHERAL = 7;
+          DEVICE_JOYSTICK = 8;
+          DEVICE_GAMEPAD = 9;
+          DEVICE_KEYBOARD = 10;
+          DEVICE_MOUSE = 11;
+          DEVICE_TABLET = 12;
+          DEVICE_KEYBOARD_MOUSE_COMBO = 13;
+        }
+        optional Type type = 2;
+
+        // Vendor prefix of the Bluetooth address, these are OUI registered by
+        // the IEEE and are encoded with the first byte in bits 16-23, the
+        // second byte in bits 8-15 and the third byte in bits 0-7.
+        //
+        // ie. Google's OUI (00:1A:11) is encoded as 0x00001A11
+        optional uint32 vendor_prefix = 4;
+
+        // Vendor ID of the device, where available.
+        optional uint32 vendor_id = 5;
+
+        // Product ID of the device, where available.
+        optional uint32 product_id = 6;
+
+        // Device ID of the device, generally the release or version number in
+        // BCD format, where available.
+        optional uint32 device_id = 7;
+      }
+      repeated PairedDevice paired_device = 3;
+    }
+    optional Bluetooth bluetooth = 13;
   }
   optional Hardware hardware = 6;
 
   // Information about the network connection.
   message Network {
     // Set to true if connection_type changed during the lifetime of the log.
     optional bool connection_type_is_ambiguous = 1;
 
     // See net::NetworkChangeNotifier::ConnectionType.
     enum ConnectionType {
@@ skipping 196 matching lines @@
     // The name of the field trial, as a 32-bit identifier.
     // Currently, the identifier is a hash of the field trial's name.
     optional fixed32 name_id = 1;
 
     // The user's group within the field trial, as a 32-bit identifier.
     // Currently, the identifier is a hash of the group's name.
     optional fixed32 group_id = 2;
   }
   repeated FieldTrial field_trial = 9;
 }