UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36

Steps to reproduce the problem:
1. Open devtools to the sources panel
2. Open a bunch of files in the code editor so there are some that aren't visible (this happens usually while debugging an application a whole bunch of files open)
3. Click the x to close the files

What is the expected behavior?
You should be able to close the tabs in the editor more easily either by using a shortcut key (most code editors and programs with tabs use Cmd/Cntrl + W), or the tabs should work more like how tabs in Chrome work where you don't have to jump around with your mouse to click on the x to close the tab.

What went wrong?
It is not a very great experience needing to close a whole bunch of open files in the tabs of the code editor. Even if it is just a couple of tabs are annoying to close. If the names of the files are different lengths the tabs jump around and you have to move your mouse to click the x. 

Did this work before? No 

Chrome version: 50.0.2661.86  Channel: stable
OS Version: OS X 10.10.2
Flash Version: Shockwave Flash 21.0 r0

I propose using this
Mac: Cmd + Shift + W 
Windows: Ctrl + Shift + W

Cmd W would close the window/tab of the browser or undocked devtools, and Cmd Shift W doesn't seem to be used yet.