Make NPAPI symbols that are defined in NaCl hidden in order to avoid collision with other plugins in Chrome. BUG=http://code.google.com/p/nativeclient/issues/detail?id=452 TEST=build Chrome with GYP_DEFINES="library=shared_library" and load a site that uses Flash. Should work with this fix and fail without it.
Make NPAPI symbols that are defined in NaCl hidden in order to avoid collision with other plugins in Chrome.
BUG=http://code.google.com/p/nativeclient/issues/detail?id=452
TEST=build Chrome with GYP_DEFINES="library=shared_library" and load a site that uses Flash. Should work with this fix and fail without it.

Review URL: http://codereview.chromium.org/2274003

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@2370 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client