bluetooth: Rename Is*Available to Is*Supported

device/bluetooth/bluetooth_adapter_factory.h

Index: device/bluetooth/bluetooth_adapter_factory.h
diff --git a/device/bluetooth/bluetooth_adapter_factory.h b/device/bluetooth/bluetooth_adapter_factory.h
index ab800db0b63e3366f7c99b0a00a25d2bec2c5072..4dbdbf312ab1fe0550550efb698d9542693f92bd 100644
--- a/device/bluetooth/bluetooth_adapter_factory.h
+++ b/device/bluetooth/bluetooth_adapter_factory.h
@@ -20,13 +20,17 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothAdapterFactory {
   typedef base::Callback<void(scoped_refptr<BluetoothAdapter> adapter)>
       AdapterCallback;
 
-  // Returns true if the Bluetooth adapter is available for the current
-  // platform.
-  static bool IsBluetoothAdapterAvailable();
-
-  // Returns true if Bluetooth Low Energy is available for the current
-  // platform.
-  static bool IsLowEnergyAvailable();
+  // Returns true if the platform supports Bluetooth. It does not imply that
+  // there is a Bluetooth radio. Use BluetoothAdapter::IsPresent to know
+  // if there is a Bluetooth radio present.
+  static bool IsBluetoothSupported();
+
+  // Returns true if the platform supports Bluetooth Low Energy. This is
+  // independent of whether or not there is a Bluetooth radio present e.g.
+  // Windows 7 does not support BLE so IsLowEnergySupported would return
+  // false. Windows 10, on the other hand, supports BLE so this function
+  // returns true even if there is no Bluetooth radio on the system.
+  static bool IsLowEnergySupported();
 
   // Returns the shared instance of the default adapter, creating and
   // initializing it if necessary. |callback| is called with the adapter