https://www.autohotkey.com/boards/viewtopic.php?p=291331#p290958

FindAddressBar.ahk

; js := "void(document.getElementById('keywords').value='Hello world 1')"
; ChromeRunJs(js)

ChromeRunJs(ByRef js) {
	static addrBar
	if !addrBar || !WinExist("ahk_id " addrBar.hWnd) {
		if !addrBar := FindAddressBar() {
			throw "FindAddressBar failed."
		}
	}

	addrBar.accObj.accValue(0) := "javascript" . Chr(58) . js
	addrBar.accObj.accSelect(0x1, 0)
	ControlSend,, {Enter}
}

FindAddressBar(WinTitle := "ahk_exe chrome.exe", oAcc := "", accPath := "") {
	if !oAcc {
		if hWnd := WinExist(WinTitle) {
			oAcc := Acc_ObjectFromWindow(hWnd)
			while oAcc.accRole(0) != 9 { ; ROLE_SYSTEM_WINDOW := 9
				oAcc := Acc_Parent(oAcc)
			}
		} else {
			throw WinTitle " not found."
		}
	}

	for i, child in Acc_Children(oAcc) {
		nRole := child.accRole(0)
		
		if (nRole = 42) { ; ROLE_SYSTEM_TEXT := 42
			if (child.accName(0) ~= "i)address|地址") {
				accPath := LTrim(accPath "." i, ".")
				return {accObj: child, accPath: accPath, hWnd: hWnd}
			}
		}

		/*
			ROLE_SYSTEM_APPLICATION := 14
			ROLE_SYSTEM_PANE        := 16
			ROLE_SYSTEM_GROUPING    := 20
			ROLE_SYSTEM_TOOLBAR     := 22
			ROLE_SYSTEM_COMBOBOX    := 46
		*/
		static oGroup := {14:1, 16:1, 20:1, 22:1, 46:1}
		if oGroup.HasKey(nRole) {
			if result := FindAddressBar(, child, accPath "." i) {
				return result
			}
		}
	}
}