https://codereview.chromium.org/2504463002 added suppresion of
deprecation warnings in an "if clang" block, but gcc also warns about
these, as can be seen on Chrome-Android waterfall for example. Fix
by moving the supression to an if linux||android block.

BUG=21515
R=thakis@chromium.org

Review URL: https://codereview.chromium.org/2571433002 .

Patch from Tomasz Śniatowski <tsniatowski@opera.com>.