Consume Mojo services directly in Blink's WebUSB implementation.

third_party/WebKit/public/platform/modules/webusb/WebUSBDevice.h

-// Copyright 2015 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 WebUSBDevice_h
-#define WebUSBDevice_h
-
-#include "public/platform/WebCallbacks.h"
-#include "public/platform/WebVector.h"
-
-#include <memory>
-
-namespace blink {
-
-struct WebUSBDeviceInfo;
-struct WebUSBError;
-struct WebUSBTransferInfo;
-
-using WebUSBDeviceOpenCallbacks = WebCallbacks<void, const WebUSBError&>;
-using WebUSBDeviceCloseCallbacks = WebCallbacks<void, const WebUSBError&>;
-using WebUSBDeviceSetConfigurationCallbacks = WebCallbacks<void, const WebUSBError&>;
-using WebUSBDeviceClaimInterfaceCallbacks = WebCallbacks<void, const WebUSBError&>;
-using WebUSBDeviceReleaseInterfaceCallbacks = WebCallbacks<void, const WebUSBError&>;
-using WebUSBDeviceResetCallbacks = WebCallbacks<void, const WebUSBError&>;
-using WebUSBDeviceSetInterfaceAlternateSettingCallbacks = WebCallbacks<void, const WebUSBError&>;
-using WebUSBDeviceClearHaltCallbacks = WebCallbacks<void, const WebUSBError&>;
-using WebUSBDeviceTransferCallbacks = WebCallbacks<std::unique_ptr<WebUSBTransferInfo>, const WebUSBError&>;
-
-class WebUSBDevice {
-public:
-    enum class TransferDirection {
-        In,
-        Out,
-    };
-
-    enum class RequestType {
-        Standard,
-        Class,
-        Vendor,
-    };
-
-    enum class RequestRecipient {
-        Device,
-        Interface,
-        Endpoint,
-        Other,
-    };
-
-    struct ControlTransferParameters {
-        TransferDirection direction;
-        RequestType type;
-        RequestRecipient recipient;
-        uint8_t request;
-        uint16_t value;
-        uint16_t index;
-    };
-
-    virtual ~WebUSBDevice() { }
-
-    virtual const WebUSBDeviceInfo& info() const = 0;
-
-    // Opens the device.
-    // Ownership of the WebUSBDeviceOpenCallbacks is transferred to the client.
-    virtual void open(WebUSBDeviceOpenCallbacks*) = 0;
-
-    // Closes the device.
-    // Ownership of the WebUSBDeviceCloseCallbacks is transferred to the client.
-    virtual void close(WebUSBDeviceCloseCallbacks*) = 0;
-
-    // Sets the active configuration for the device.
-    // Ownership of the WebUSBDeviceSetConfigurationCallbacks is transferred to the client.
-    virtual void setConfiguration(uint8_t configurationValue, WebUSBDeviceSetConfigurationCallbacks*) = 0;
-
-    // Claims an interface in the active configuration.
-    // Ownership of the WebUSBDeviceClaimInterfaceCallbacks is transferred to the client.
-    virtual void claimInterface(uint8_t interfaceNumber, WebUSBDeviceClaimInterfaceCallbacks*) = 0;
-
-    // Releases a claimed interface.
-    // Ownership of the WebUSBDeviceReleaseInterfaceCallbacks is transferred to the client.
-    virtual void releaseInterface(uint8_t interfaceNumber, WebUSBDeviceReleaseInterfaceCallbacks*) = 0;
-
-    // Sets the alternate setting of an interface.
-    // Ownership of the WebUSBDeviceSetInterfaceAlternateSettingCallbacks is transferred to the client.
-    virtual void setInterface(uint8_t interfaceNumber, uint8_t alternateSetting, WebUSBDeviceSetInterfaceAlternateSettingCallbacks*) = 0;
-
-    // Clears the halt condition on a specific endpoint.
-    // Ownership of the WebUSBDeviceClearHaltCallbacks is transferred to the client.
-    virtual void clearHalt(uint8_t endpointNumber, WebUSBDeviceClearHaltCallbacks*) = 0;
-
-    // Initiates a control transfer.
-    // Ownership of the WebUSBDeviceTransferCallbacks is transferred to the client.
-    virtual void controlTransfer(const ControlTransferParameters&, uint8_t* data, size_t dataSize, unsigned timeout, WebUSBDeviceTransferCallbacks*) = 0;
-
-    // Initiates a bulk or interrupt transfer.
-    // Ownership of the WebUSBDeviceTransferCallbacks is transferred to the client.
-    virtual void transfer(TransferDirection, uint8_t endpointNumber, uint8_t* data, size_t dataSize, unsigned timeout, WebUSBDeviceTransferCallbacks*) = 0;
-
-    // Initiates an isochronous transfer.
-    // Ownership of the WebUSBDeviceTransferCallbacks is transferred to the client.
-    virtual void isochronousTransfer(TransferDirection, uint8_t endpointNumber, uint8_t* data, size_t dataSize, WebVector<unsigned> packetLengths, unsigned timeout, WebUSBDeviceTransferCallbacks*) = 0;
-
-    // Resets the device.
-    // Ownership of the WebUSBDeviceResetCallbacks is transferred to the client.
-    virtual void reset(WebUSBDeviceResetCallbacks*) = 0;
-};
-
-} // namespace blink
-
-#endif // WebUSBDevice_h