bluetooth: Make "radio" casing consistent

Un-capitalizes all instances of "radio" to make them consistent.

TBR=dominickn@chromium.org

Bug: 870192
Change-Id: Ibf38e8eae85d2ae05a2f82788193fec880f6a46a
Reviewed-on: https://chromium-review.googlesource.com/c/1341773Reviewed-by: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Commit-Queue: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609202}

services/device/public/mojom/bluetooth_system.mojom

@@ -10,7 +10,7 @@ interface BluetoothSystemFactory {
 };
 
 // High level interface targeted towards UI level components that:
-//  - Show the BT Radio state and allow users to change it.
+//  - Show the BT radio state and allow users to change it.
 //  - Show a list of nearby, connected and paired BT Devices.
 //  - Start and stop BT scans.
 //  - Connect to and pair with BT devices.
@@ -26,21 +26,21 @@ interface BluetoothSystem {
     // The platform supports Bluetooth but we can’t use it right now e.g. a BT
     // radio is not present.
     kUnavailable,
-    // Bluetooth Radio is off.
+    // Bluetooth radio is off.
     kPoweredOff,
     // State is transitioning between PoweredOff and PoweredOn or vice versa.
     kTransitioning,
-    // Bluetooth Radio is on.
+    // Bluetooth radio is on.
     kPoweredOn,
   };
 
   GetState() => (State state);
 
   enum SetPoweredResult {
-    // Command successfully sent to BT Radio or ignored if the new state matches
+    // Command successfully sent to BT radio or ignored if the new state matches
     // the current state. OnStateChanged call is imminent if the former.
     kSuccess,
-    // Unknown failure when sending the command to the BT Radio.
+    // Unknown failure when sending the command to the BT radio.
     kFailedUnknownReason,
     // Can't use Bluetooth right now e.g. a BT radio is not present.
     kBluetoothUnavailable,
@@ -48,8 +48,8 @@ interface BluetoothSystem {
 
   // Attempts to change the state of the Bluetooth to `kPoweredOn` if |powered|
   // and `kPoweredOff` otherwise . Callback is run with `kSuccess if the command
-  // was successfully sent to the BT Radio. The state immediately changes to
-  // kTransitioning and once the BT Radio actually changes state
+  // was successfully sent to the BT radio. The state immediately changes to
+  // kTransitioning and once the BT radio actually changes state
   // BluetoothSystemClient::OnStateChanged will be called.
   // TODO(https://crbug.com/896113): This function is missing two features:
   //  1. The new state should be saved in the user's pref so that the next time
@@ -58,10 +58,10 @@ interface BluetoothSystem {
   //     there is one in progress already.
   SetPowered(bool powered) => (SetPoweredResult result);
 
-  // Whether the BT Radio is scanning for devices.
+  // Whether the BT radio is scanning for devices.
   enum ScanState {
-    // The BT Radio is not scanning for devices, Bluetooth is unavailable, or
-    // the BT Radio is off.
+    // The BT radio is not scanning for devices, Bluetooth is unavailable, or
+    // the BT radio is off.
     kNotScanning,
     // State is transitioning between Scanning and Not Scanning and vice versa.
     kTransitioning,
@@ -72,10 +72,10 @@ interface BluetoothSystem {
   GetScanState() => (ScanState scan_state);
 
   enum StartScanResult {
-    // Command successfully sent to BT Radio or ignored if already scanning.
+    // Command successfully sent to BT radio or ignored if already scanning.
     // OnScanStateChanged call is imminent if the former.
     kSuccess,
-    // Unknown failure when sending the command to the BT Radio.
+    // Unknown failure when sending the command to the BT radio.
     kFailedUnknownReason,
     // Can't use Bluetooth right now e.g. BT radio is off, not present, or
     // transitioning between states.
@@ -84,8 +84,8 @@ interface BluetoothSystem {
   };
 
   // Attempts to start scanning for Bluetooth devices. Callback is run with
-  // `kSuccess` if the command was successfully sent to the BT Radio. Once the
-  // BT Radio actually starts scanning for devices,
+  // `kSuccess` if the command was successfully sent to the BT radio. Once the
+  // BT radio actually starts scanning for devices,
   // BluetoothSystemClient::OnScanStateChanged will be called.
   // TODO(https://crbug.com/897996): This function is missing two features:
   //  1. Support concurrent calls; currently BlueZ just drops other calls if
@@ -94,9 +94,9 @@ interface BluetoothSystem {
   StartScan() => (StartScanResult result);
 
   enum StopScanResult {
-    // Command successfully sent to BT Radio.
+    // Command successfully sent to BT radio.
     kSuccess,
-    // Unknown failure when sending the command to the BT Radio.
+    // Unknown failure when sending the command to the BT radio.
     kFailedUnknownReason,
     // Can't use Bluetooth right now e.g. BT radio is off, or not present.
     kBluetoothUnavailable,
@@ -104,8 +104,8 @@ interface BluetoothSystem {
   };
 
   // Attempts to stop scanning for Bluetooth devices. Callback is run with
-  // `kSuccess` if the command was successfully sent to the BT Radio. Once the
-  // BT Radio actually stops scanning for devices,
+  // `kSuccess` if the command was successfully sent to the BT radio. Once the
+  // BT radio actually stops scanning for devices,
   // BluetoothSystemClient::OnScanStateChanged will be called.
   // TODO(https://crbug.com/897996): This function is missing two features:
   //  1. Support concurrent calls; currently BlueZ just drops other calls if