DevTools: improve launch chrome (add --reset-profile option)

third_party/WebKit/Source/devtools/readme.md

Index: third_party/WebKit/Source/devtools/readme.md
diff --git a/third_party/WebKit/Source/devtools/readme.md b/third_party/WebKit/Source/devtools/readme.md
index c95fb23f55115427a984fee5871af95f53b8d57d..cf9767964ac358906178d1c0a8510bb3c10c12f0 100644
--- a/third_party/WebKit/Source/devtools/readme.md
+++ b/third_party/WebKit/Source/devtools/readme.md
@@ -30,6 +30,15 @@ The frontend is available through a git subtree mirror on [chromium.googlesource
 > npm run chrome -- https://news.ycombinator.com
 > ```
 > (e.g. this launches Hacker News on startup)
+>
+> If you want to reset your development profile for Chrome, pass in "--reset-profile":
+> ```
+> npm start -- --reset-profile
+> ```
+> *OR*
+> ```
+> npm run chrome -- --reset-profile

[dgozman, 2016/11/09 23:34:39]

Why extra -- ? This looks like a flag of the "run" command for me, not like a
chrome flag.

[chenwilliam, 2016/11/09 23:48:20]

I see what you're saying. Unfortunately, it's an npm configuration where only
the args after "--" are passed to the node.js script [0]. Thus, with these npm
commands, I can't do "npm run chrome --reset-profile" even though that looks
cleaner.

[0] https://docs.npmjs.com/cli/run-script

+> ```
 
 ### Hacking
 * DevTools documentation: [devtools.chrome.com](https://devtools.chrome.com)