Use -fno-threadsafe-statics to disable thread-safe static semantics in C++. This will eliminate the cxa_guard_acquire/release locks around static guard accesses.  The Windows compiler doesn't support thread-safe statics at all, so none of our cross-platform code relies on thread safety.  We are using -fno-threadsafe-statics on Linux as well, since r20616.  It's likely that threading is not a concern in most to all Mac-specific code using statics.
Use -fno-threadsafe-statics to disable thread-safe static semantics in C++.
This will eliminate the cxa_guard_acquire/release locks around static guard
accesses.  The Windows compiler doesn't support thread-safe statics at all,
so none of our cross-platform code relies on thread safety.  We are using
-fno-threadsafe-statics on Linux as well, since r20616.  It's likely that
threading is not a concern in most to all Mac-specific code using statics.

BUG=16713
TEST=none
Review URL: http://codereview.chromium.org/165461

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@23326 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