Refactor device::BluetoothGattXXX classes to split into remote/local.

device/bluetooth/bluetooth_remote_gatt_characteristic.cc

 // Copyright 2016 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.
 
-#include "device/usb/mojo/permission_provider.h"
+#include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
+
+#include "device/bluetooth/bluetooth_remote_gatt_descriptor.h"
 
 namespace device {
-namespace usb {
 
-PermissionProvider::PermissionProvider() {}
+BluetoothRemoteGattCharacteristic::BluetoothRemoteGattCharacteristic() {}
 
-PermissionProvider::~PermissionProvider() {}
+BluetoothRemoteGattCharacteristic::~BluetoothRemoteGattCharacteristic() {}
 
-}  // namespace usb
+std::vector<BluetoothRemoteGattDescriptor*>
+BluetoothRemoteGattCharacteristic::GetDescriptorsByUUID(
+    const BluetoothUUID& uuid) {
+  std::vector<BluetoothRemoteGattDescriptor*> descriptors;
+  for (BluetoothRemoteGattDescriptor* descriptor : GetDescriptors()) {
+    if (descriptor->GetUUID() == uuid) {
+      descriptors.push_back(descriptor);
+    }
+  }
+  return descriptors;
+}
+
 }  // namespace device