Merge "libbinder: writeInterfaceToken char16_t* variant" am: d0f1f1e3

// Write RPC headers.  (previously just the interface token)

status_t Parcel::writeInterfaceToken(const String16& interface)

{

    return writeInterfaceToken(interface.string(), interface.size());

}

status_t Parcel::writeInterfaceToken(const char16_t* str, size_t len) {

    const IPCThreadState* threadState = IPCThreadState::self();

    writeInt32(threadState->getStrictModePolicy() | STRICT_MODE_PENALTY_GATHER);

    updateWorkSourceRequestHeaderPosition();

    writeInt32(threadState->shouldPropagateWorkSource() ?

            threadState->getCallingWorkSourceUid() : IPCThreadState::kUnsetWorkSource);

    writeInt32(kHeader);

    // currently the interface identification token is just its name as a string

    return writeString16(interface);

    return writeString16(str, len);

}

bool Parcel::replaceCallingWorkSourceUid(uid_t uid)

    // Writes the RPC header.

    status_t            writeInterfaceToken(const String16& interface);

    status_t            writeInterfaceToken(const char16_t* str, size_t len);

    // Parses the RPC header, returning true if the interface name

    // in the header matches the expected interface from the caller.