bluetooth: Add control for reading/writing of characteristics to internals page.

device/bluetooth/device.h

Index: device/bluetooth/device.h
diff --git a/device/bluetooth/device.h b/device/bluetooth/device.h
index eeda11f21f7da4084c3424bdfbfc73e742db4947..e32e112b1fda1b23c27e92af991bdcc66f483761 100644
--- a/device/bluetooth/device.h
+++ b/device/bluetooth/device.h
@@ -11,6 +11,7 @@
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 #include "device/bluetooth/bluetooth_device.h"
 #include "device/bluetooth/bluetooth_gatt_connection.h"
@@ -53,6 +54,15 @@ class Device : public mojom::Device, public device::BluetoothAdapter::Observer {
   void GetServices(const GetServicesCallback& callback) override;
   void GetCharacteristics(const std::string& service_id,
                           const GetCharacteristicsCallback& callback) override;
+  void ReadValueForCharacteristic(
+      const std::string& service_id,
+      const std::string& characteristic_id,
+      const ReadValueForCharacteristicCallback& callback) override;
+  void WriteValueForCharacteristic(
+      const std::string& service_id,
+      const std::string& characteristic_id,
+      const std::vector<uint8_t>& value,
+      const WriteValueForCharacteristicCallback& callback) override;
 
  private:
   Device(scoped_refptr<device::BluetoothAdapter> adapter,
@@ -66,6 +76,21 @@ class Device : public mojom::Device, public device::BluetoothAdapter::Observer {
   void GetCharacteristicsImpl(const std::string& service_id,
                               const GetCharacteristicsCallback& callback);
 
+  void OnReadRemoteCharacteristic(
+      const ReadValueForCharacteristicCallback& callback,
+      const std::vector<uint8_t>& value);
+
+  void OnReadRemoteCharacteristicError(
+      const ReadValueForCharacteristicCallback& callback,
+      device::BluetoothGattService::GattErrorCode error_code);
+
+  void OnWriteRemoteCharacteristic(
+      const WriteValueForCharacteristicCallback& callback);
+
+  void OnWriteRemoteCharacteristicError(
+      const WriteValueForCharacteristicCallback& callback,
+      device::BluetoothGattService::GattErrorCode error_code);
+
   const std::string& GetAddress();
 
   // The current BluetoothAdapter.
@@ -80,6 +105,8 @@ class Device : public mojom::Device, public device::BluetoothAdapter::Observer {
   // services to be discovered for this device.
   std::vector<base::Closure> pending_services_requests_;
 
+  base::WeakPtrFactory<Device> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(Device);
 };