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

device/bluetooth/bluetooth_local_gatt_descriptor.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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.
 
-#ifndef DEVICE_BLUETOOTH_TEST_MOCK_BLUETOOTH_GATT_DESCRIPTOR_H_
-#define DEVICE_BLUETOOTH_TEST_MOCK_BLUETOOTH_GATT_DESCRIPTOR_H_
+#ifndef DEVICE_BLUETOOTH_BLUETOOTH_LOCAL_GATT_DESCRIPTOR_H_
+#define DEVICE_BLUETOOTH_BLUETOOTH_LOCAL_GATT_DESCRIPTOR_H_
 
 #include <stdint.h>
-
-#include <string>
 #include <vector>
 
-#include "base/callback.h"
 #include "base/macros.h"
-#include "device/bluetooth/bluetooth_gatt_characteristic.h"
+#include "device/bluetooth/bluetooth_export.h"
 #include "device/bluetooth/bluetooth_gatt_descriptor.h"
+#include "device/bluetooth/bluetooth_local_gatt_characteristic.h"
 #include "device/bluetooth/bluetooth_uuid.h"
-#include "testing/gmock/include/gmock/gmock.h"
 
 namespace device {
 
-class MockBluetoothGattCharacteristic;
+// BluetoothLocalGattDescriptor represents a local GATT characteristic
+// descriptor. A GATT characteristic descriptor provides further information
+// about a characteristic's value. They can be used to describe the
+// characteristic's features or to control certain behaviors.
+//
+// Note: We use virtual inheritance on the GATT descriptor since it will be
+// inherited by platform specific versions of the GATT descriptor classes also.
+// The platform specific local GATT descriptor classes will inherit both this
+// class and their GATT descriptor class, hence causing an inheritance diamond.
+class DEVICE_BLUETOOTH_EXPORT BluetoothLocalGattDescriptor
+    : public virtual BluetoothGattDescriptor {
+ public:
+  // Constructs a BluetoothLocalGattDescriptor that can be associated with a
+  // local GATT characteristic when the adapter is in the peripheral role. To
+  // associate the returned descriptor with a characteristic, provide a pointer
+  // to that characteristic instance to the create function.
+  //
+  // This method constructs a characteristic descriptor with UUID |uuid| and the
+  // initial cached value |value|. |value| will be cached and returned for read
+  // requests and automatically modified for write requests by default, unless
+  // an instance of BluetoothLocalGattService::Delegate has been provided to
+  // the
+  // associated BluetoothLocalGattService instance, in which case the delegate
+  // will
+  // handle the read and write requests.
+  //
+  // Currently, only custom UUIDs, |kCharacteristicDescriptionUuid|, and
+  // |kCharacteristicPresentationFormat| are supported for locally hosted
+  // descriptors. This method will return NULL if |uuid| is any one of the
+  // unsupported predefined descriptor UUIDs.
+  static BluetoothLocalGattDescriptor* Create(
+      const BluetoothUUID& uuid,
+      const std::vector<uint8_t>& value,
+      BluetoothGattCharacteristic::Permissions permissions,
+      BluetoothLocalGattCharacteristic* characteristic);
 
-class MockBluetoothGattDescriptor : public BluetoothGattDescriptor {
- public:
-  MockBluetoothGattDescriptor(
-      MockBluetoothGattCharacteristic* characteristic,
-      const std::string& identifier,
-      const BluetoothUUID& uuid,
-      bool is_local,
-      BluetoothGattCharacteristic::Permissions permissions);
-  virtual ~MockBluetoothGattDescriptor();
-
-  MOCK_CONST_METHOD0(GetIdentifier, std::string());
-  MOCK_CONST_METHOD0(GetUUID, BluetoothUUID());
-  MOCK_CONST_METHOD0(IsLocal, bool());
-  MOCK_CONST_METHOD0(GetValue, const std::vector<uint8_t>&());
-  MOCK_CONST_METHOD0(GetCharacteristic, BluetoothGattCharacteristic*());
-  MOCK_CONST_METHOD0(GetPermissions,
-                     BluetoothGattCharacteristic::Permissions());
-  MOCK_METHOD2(ReadRemoteDescriptor,
-               void(const ValueCallback&, const ErrorCallback&));
-  MOCK_METHOD3(WriteRemoteDescriptor,
-               void(const std::vector<uint8_t>&,
-                    const base::Closure&,
-                    const ErrorCallback&));
+ protected:
+  BluetoothLocalGattDescriptor();
+  ~BluetoothLocalGattDescriptor() override;
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(MockBluetoothGattDescriptor);
+  DISALLOW_COPY_AND_ASSIGN(BluetoothLocalGattDescriptor);
 };
 
 }  // namespace device
 
-#endif  // DEVICE_BLUETOOTH_TEST_MOCK_BLUETOOTH_GATT_DESCRIPTOR_H_
+#endif  // DEVICE_BLUETOOTH_BLUETOOTH_LOCAL_GATT_DESCRIPTOR_H_