bluetooth: Implement TxPower and RSSI of BluetoothAdvertisementData

third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothDevice.h

Index: third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothDevice.h
diff --git a/third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothDevice.h b/third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothDevice.h
index 76534e50ab788a1dc1b188c173d24b1dfdb227c5..7cd59448439d4095b2cc85e830616fc0a787269d 100644
--- a/third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothDevice.h
+++ b/third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothDevice.h
@@ -20,6 +20,8 @@ struct WebBluetoothDevice {
 
     WebBluetoothDevice(const WebString& id,
         const WebString& name,
+        int txPower,
+        int rssi,
         int32_t deviceClass,
         VendorIDSource vendorIDSource,
         uint16_t vendorID,
@@ -29,6 +31,8 @@ struct WebBluetoothDevice {
         const WebVector<WebString>& uuids)
         : id(id)
         , name(name)
+        , txPower(txPower)
+        , rssi(rssi)
         , deviceClass(deviceClass)
         , vendorIDSource(vendorIDSource)
         , vendorID(vendorID)
@@ -42,6 +46,13 @@ struct WebBluetoothDevice {
     // Members corresponding to BluetoothDevice attributes as specified in IDL.
     const WebString id;
     const WebString name;
+    // Powers:
+    // In practice these values should be between [-127, 20], but since the
+    // since the underlying platform uses int16 rather than int8 blink turns

[scheib, 2015/10/29 20:59:13]

I don't think the int16 reference makes much sense here. Just document what
valid input values are and what the special number is that represents an invalid
value. Possibly use an int8_t to reduce the comment size (as then there is only
1 special value range, not 3).

+    // values smaller than INT8_MIN or larger than INT8_MAX into INT8_MAX. A
+    // value of INT8_MAX denotes an invalid power.
+    const int txPower;
+    const int rssi;
     const int32_t deviceClass;
     const VendorIDSource vendorIDSource;
     const uint16_t vendorID;