Omit DLOGs and DCHECKs from release-mode Google Chrome-branded builds on non-Windows.  They were previously omitted on Windows official builds only.
Omit DLOGs and DCHECKs from release-mode Google Chrome-branded builds on
non-Windows.  They were previously omitted on Windows official builds only.

BUG=16512
TEST=DCHECK logging unavailable in official builds;
     Mac .app shrinks by about 740kB;
     Mac .dmg shrinks by about 315kB;
     Linux binary and package shrink by similar amounts
Review URL: http://codereview.chromium.org/171093

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@23791 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser