bluetooth: Browser-side implementation of readValue

device/bluetooth/test/mock_bluetooth_gatt_service.cc

Index: device/bluetooth/test/mock_bluetooth_gatt_service.cc
diff --git a/device/bluetooth/test/mock_bluetooth_gatt_service.cc b/device/bluetooth/test/mock_bluetooth_gatt_service.cc
index faba596a2d1e4f5f5df8df760955a69167c03511..93cbfc573e8391dc1adb836080036311454e8f9c 100644
--- a/device/bluetooth/test/mock_bluetooth_gatt_service.cc
+++ b/device/bluetooth/test/mock_bluetooth_gatt_service.cc
@@ -47,4 +47,14 @@ MockBluetoothGattService::GetMockCharacteristics() const {
   return characteristics;
 }
 
+BluetoothGattCharacteristic* MockBluetoothGattService::GetMockCharacteristic(
+    const std::string& identifier) const {
+  for (BluetoothGattCharacteristic* characteristic : mock_characteristics_) {
+    if (characteristic->GetIdentifier() == identifier) {
+      return characteristic;
+    }
+  }
+  return nullptr;
+}
+
 }  // namespace device