Fixing debug GN build.
Gate out ICU initialization for OS_NACL,
as it calls other code that is not built for nacl.
Undetected in gyp build since we always build the nacl irt as release
with gc-sections.
Stop building the ppb_var_deprecated_proxy as it's only used in the
trusted build for flash.
Undetected in gyp build since we always build the nacl irt as release
with gc-sections.
BUG=https://code.google.com/p/chromium/issues/detail?id=462791
TEST=trybots
R=dmichael@chromium.org,dpranke@chromium.org
Review URL: https://codereview.chromium.org/
1034553002
Cr-Commit-Position: refs/heads/master@{#322070}