[Sensors] Handle default sensor configuration

third_party/WebKit/Source/modules/sensor/SensorProxy.h

 // 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 SensorProxy_h
 #define SensorProxy_h
 
 #include "device/generic_sensor/public/interfaces/sensor.mojom-blink.h"
 #include "device/generic_sensor/public/interfaces/sensor_provider.mojom-blink.h"
 #include "mojo/public/cpp/bindings/binding.h"
@@ skipping 41 matching lines @@
     void suspend();
     void resume();
 
     device::mojom::blink::SensorType type() const { return m_type; }
     device::mojom::blink::ReportingMode reportingMode() const { return m_mode; }
 
     struct Reading {
         double timestamp;
         double reading[3];
     };
-    static_assert(sizeof(Reading) == device::mojom::blink::SensorReadBuffer::kReadBufferSize, "Check reading size");
+    static_assert(sizeof(Reading) == device::mojom::blink::SensorInitParams::kReadBufferSize, "Check reading size");
 
     const Reading& reading() const { return m_reading; }
 
+    const device::mojom::blink::SensorConfiguration* defaultConfig() const;
+
     // Updates internal reading from shared buffer.
     void updateInternalReading();
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     friend class SensorProviderProxy;
     SensorProxy(device::mojom::blink::SensorType, SensorProviderProxy*);
 
     // device::mojom::blink::SensorClient overrides.
     void RaiseError() override;
     void SensorReadingChanged() override;
 
     // Generic handler for a fatal error.
     void handleSensorError();
 
-    void onSensorCreated(device::mojom::blink::SensorReadBufferPtr, device::mojom::blink::SensorClientRequest);
+    void onSensorCreated(device::mojom::blink::SensorInitParamsPtr, device::mojom::blink::SensorClientRequest);
 
     device::mojom::blink::SensorType m_type;
     device::mojom::blink::ReportingMode m_mode;
     Member<SensorProviderProxy> m_provider;
     using ObserversSet = HeapHashSet<WeakMember<Observer>>;
     ObserversSet m_observers;
 
     device::mojom::blink::SensorPtr m_sensor;
+    device::mojom::blink::SensorConfigurationPtr m_defaultConfig;
     mojo::Binding<device::mojom::blink::SensorClient> m_clientBinding;
+
     enum State {
         Uninitialized,
         Initializing,
         Initialized
     };
     State m_state;
     mojo::ScopedSharedBufferHandle m_sharedBufferHandle;
     mojo::ScopedSharedBufferMapping m_sharedBuffer;
     Reading m_reading;
     bool m_suspended;
 };
 
 } // namespace blink
 
 #endif // SensorProxy_h