Move '#include <string.h>' into '#if defined(ADDRESS_SANITIZER)' block.

The string.h is required only when using the address sanitizer.

Review URL: https://codereview.chromium.org/229973003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@262967 0039d316-1c4b-4281-b951-d872f2087c98

chrome/app/chrome_exe_main_mac.cc

@@ -7,9 +7,9 @@
 
 #if defined(ADDRESS_SANITIZER)
 #include <crt_externs.h>  // for _NSGetArgc, _NSGetArgv
+#include <string.h>
 #endif  // ADDRESS_SANITIZER
 #include <stdlib.h>
-#include <string.h>
 
 #if defined(ADDRESS_SANITIZER)
 // NaCl requires its own SEGV handler, so we need to add handle_segv=0 to