[js] Revamp the actions API to support the W3C spec and drop support for legacy

actions.

This is going to hurt users one way or the other: chrome currently only supports
legacy actions and firefox only supports W3C. Since all JS changes are now
targeting 4.0 (a major version bump), we're dropping support for legacy and
moving forward with W3C only.

For #4564, #4662

Author: jleyba

javascript/node/selenium-webdriver/CHANGES.md

@@ -20,12 +20,22 @@ mode.
     - `lib/webdriver.WebElementPromise`
 * The `testing/index` module no longer wraps the promise manager
 * Removed `remote/index.DriverService.prototype.stop()` (use `#kill()` instead)
+* Removed the `lib/actions` module
 * Removed the `phantomjs` module
 * Removed the 'opera' module
 * Removed the `WebDriver.attachToSession()` factory method. Users can just use
   use the `WebDriver` constructor directly instead.
+* Removed the `WebDriver.prototype.touchActions()` method. Action sequences
+  are now defined from a single origin: `WebDriver.prototype.actions()`.
 * Renamed `WebDriver#schedule()` to `WebDriver#execute()`
 
+### Changes for W3C WebDriver Spec Compliance
+
+Revamped the actions API to conform with the WebDriver Spec:
+<https://www.w3.org/TR/webdriver/#actions>. For details, refer to the JS doc
+on the `lib/webdriver.ActionSequence` class. For simplicity, support for the
+legacy actions API has been removed.
+
 
 ## v3.6.0
 

javascript/node/selenium-webdriver/index.js

@@ -27,7 +27,6 @@ const edge = require('./edge');
 const firefox = require('./firefox');
 const _http = require('./http');
 const ie = require('./ie');
-const actions = require('./lib/actions');
 const by = require('./lib/by');
 const capabilities = require('./lib/capabilities');
 const command = require('./lib/command');
@@ -612,7 +611,7 @@ class Builder {
 // PUBLIC API
 
 
-exports.ActionSequence = actions.ActionSequence;
+exports.ActionSequence = webdriver.ActionSequence;
 exports.Browser = capabilities.Browser;
 exports.Builder = Builder;
 exports.Button = input.Button;
@@ -625,7 +624,6 @@ exports.FileDetector = input.FileDetector;
 exports.Key = input.Key;
 exports.Session = session.Session;
 exports.ThenableWebDriver = ThenableWebDriver;
-exports.TouchSequence = actions.TouchSequence;
 exports.WebDriver = webdriver.WebDriver;
 exports.WebElement = webdriver.WebElement;
 exports.WebElementCondition = webdriver.WebElementCondition;