UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.62 Safari/537.36

Steps to reproduce the problem:
1. launch chrome with remote debugging on (default settings from either puppeteer or chromedriver)
2. Send `Input.dispatchKeyEvent` with payload `{ "nativeVirtualKeyCode": 16, "type": "rawKeyDown" }` via devtools protocol.

What is the expected behavior?
Browser should handle received input without loading chrome://settings/help

What went wrong?
Help page is opened immediately after receiving the key event.

Did this work before? Yes 

Chrome version: 62.0.3202.62  Channel: stable
OS Version: OS X 10.12.6
Flash Version: 

This can be reproduced via multiple ways. I discovered this in Selenium tests when trying to write capital letter into an input field. I quickly narrowed that down to specific comamnds in chromedriver, as shown in the attachment video.

After gathering the chromedriver logs I also managed to reproduce that via puppeteer with following script:

```
const puppeteer = require('puppeteer');

(async () => {
    const browser = await puppeteer.launch({ headless: false });
    const page = await browser.newPage()
    const client = page._client

    await client.send('Input.dispatchKeyEvent', {
        "nativeVirtualKeyCode": 16,
        "type": "rawKeyDown",
    })
    await new Promise(()=>{})
})()
```
 

Deleted: chromedriver_opens_help.mp4 1.7 MB

	chromedriver_opens_help.mp4 1.7 MB View Download