How can I use selenium or appium to automate chrome browser on android?

debug: executing: adb install C:\Users\hidden\Downloads\AppiumForWindows-0.14.2\ Appium\node_modules\appium\build\unlock_apk\unlock_apk-debug.apk

If nothing is happening here, then you must restart your ARM emulator and the appium server/chromedriver again. I came across this multiple times and noticed many a times adb shuts down and looses connectivity. If I restart abd, everything starts working. This is just a adb command to install the apk, it should take time depending on the size of the apk but not much.

public static void main(String[] args) throws MalformedURLException{
    DesiredCapabilities  capabilities = new DesiredCapabilities();
    capabilities.setCapability("device","Android");
    capabilities.setCapability("app", "Chrome");
    capabilities.setCapability(CapabilityType.BROWSER_NAME, "");
    capabilities.setCapability(CapabilityType.VERSION, "4.3");
    capabilities.setCapability(CapabilityType.PLATFORM, "WINDOWS");
    WebDriver driver = new RemoteWebDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
    driver.get("http://www.yahoo.com");
}

I have this piece of code which runs well on appium automating the android chrome browser. In the above log, you chromedriver has not started successfully and so the browser is not automated. I have appium log which is automating the chrome browser: Also, every combination of ChromeDriver and Chrome APK is not working. I have been struggling this since days and found out that: Chrome Driver 2.3 and Chrome APK 29.xxx are compatible. Chrome Driver 2.9/2.8 and Chrome APK 30.xx or 31.xx are not working.

Regarding Just ChromeDriver: The chromium link you mentioned will automate the PC browser if you have not set the capability. Something like this:

DesiredCapabilities capabilities=new DesiredCapabilities();//DesiredCapabilities.chrome();
    ChromeOptions options=new ChromeOptions();
    options.setExperimentalOptions("androidPackage", "com.android.chrome");
    capabilities.setCapability(ChromeOptions.CAPABILITY, options);

You have to set this capability incase you are just using chromedriver (and not appium). I am working on this but could not find the capability. Also you will have to start the ChromDriver by yourself on command promt which will listen at 9515 port for any automation.