Revert 242673 "Build fix after r242671"

> Build fix after r242671
> 
> TBR=dsinclair
> 
> Review URL: https://codereview.chromium.org/99153011

TBR=haraken@chromium.org

Review URL: https://codereview.chromium.org/110423006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242678 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242678
Revert 242671 "Implement sampling profiler (chromium side change)"

> Implement sampling profiler (chromium side change)
> 
> Trace-viewer side change is here: https://codereview.appspot.com/39310043
> 
> Screenshot of the profiler: http://haraken.info/null/sampling_tracing.png
> 
> Design document: https://docs.google.com/a/google.com/document/d/1j39sbA9ECTwFFlxbhSD1EvJnGfYeS5EUJ05yxuku6VY/edit
> 
> TBR=phajdan.jr
> NOTRY=true
> 
> Review URL: https://codereview.chromium.org/109933006

TBR=haraken@chromium.org

Review URL: https://codereview.chromium.org/122053002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242679 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242679