Android 4.4.3 aka KitKat MR2 is rolling out. In this release the WebView has been updated to Chromium M33, bringing security and stability enhancements, as well as bug fixes.
Additionally, M33 includes: - DevTools screencast  is supported for WebView. Allowing easy capture of screenshots on desktop, and viewing the contents of off-screen WebViews inside Chrome DevTools - Improved HTML5 Canvas performance with support for hardware-acceleration - Vibration API  (with android.permission.VIBRATE) - HTML5 form validation  - HTML datalist tag 
The default user-agent string for a WebView running on Android 4.4.3 has been updated to incorporate 18.104.22.168 as the version number.
I just updated my Nexus 5 yesterday evening to 4.4.3. When calling or receiving call still the Company name is not seen. When you have many business contacts this is a big need. In IOS this is solved with the updates last year. I hope we can also have it in the future Android updates.