Reverting r1448 "ninja: make cross-compilation use $CC/$CXX for the target compiler" because it breaks Mac build.
Reverting r1448 "ninja: make cross-compilation use $CC/$CXX for the target compiler" because it breaks Mac build.

TBR=piman@chromium.org

old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google