Chrome extension to erase completed items in the download history from the beginning of time, thus eliminating the downloads icon next to the address bar.

erase_completed_downloads

background.js

chrome.commands.onCommand.addListener(function(command) {
    if (command == "erase_completed_downloads") {
        eraseCompletedDownloads();
    }
});

function eraseCompletedDownloads() {
    chrome.downloads.erase({state: "complete"});
}

manifest.json

{
    "manifest_version": 2,
    "name": "Erase Completed Downloads",
    "version": "0.1",
    "description": "Erase completed items in the download history from the beginning of time, thus eliminating the downloads icon next to the address bar.",

    "background": {
        "scripts": ["background.js"],
        "persistent": false
    },
    "commands": {
        "erase_completed_downloads": {
            "suggested_key": { "default": "Ctrl+C" },
            "description": "Erase completed downloads"
        }
    },

    "permissions": [
        "downloads"
    ]
}