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Add description for the incoming transactions controller (#9759)

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This comment block describes the responsibilities of this controller.
This was motivated by a suggestion made during review of #9755 [1]

[1]: https://github.com/MetaMask/metamask-extension/pull/9755#discussion_r514400479
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Mark Stacey 2020-10-30 11:33:35 -02:30 committed by GitHub
parent ff7ce81c73
commit 4bacb9144f
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7
app/scripts/controllers/incoming-transactions.js
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@ -18,6 +18,13 @@ const fetch = fetchWithTimeout({
timeout: 30000,
})
/**
* This controller is responsible for retrieving incoming transactions. Etherscan is polled once every block to check
* for new incoming transactions for the current selected account on the current network
*
* Note that only the built-in Infura networks are supported (i.e. anything in `INFURA_PROVIDER_TYPES`). We will not
* attempt to retrieve incoming transactions on any custom RPC endpoints.
*/
export default class IncomingTransactionsController {
constructor (opts = {}) {