check-webkit-style is wrong about style for c++11 lambdas
It complains: Place brace on its own line for function definitions. [whitespace/braces] 
An example patch with the correct style is attached to bug https://bugs.webkit.org/show_bug.cgi?id=125258
Created attachment 219357 [details]
The fix, without a unit test or a patch to the website to add this exception to the coding style guidelines.
Don't have time to add the exception to the coding style guidelines or write a unit test for this, but this is the fix.
*** Bug 137309 has been marked as a duplicate of this bug. ***
Bug 153732 shows one of the many, many cases where the style checker gives false positives about this.
*** This bug has been marked as a duplicate of bug 160910 ***