Work-around ASAN problem in profiler

ASAN wraps the kernel dylib on mac. Special case this to avoid tripping
a DCHECK.

BUG=718628
TBR=avi@chromium.org

Review-Url: https://codereview.chromium.org/2859303002
Cr-Commit-Position: refs/heads/master@{#469515}

base/profiler/native_stack_sampler_mac.cc

@@ -166,8 +166,11 @@ const char* LibSystemKernelName() {
   dladdr(reinterpret_cast<void*>(_exit), &info);
   strncpy(path, info.dli_fname, PATH_MAX);
   name = path;
+
+#if !defined(ADDRESS_SANITIZER)
   DCHECK_EQ(std::string(name),
             std::string("/usr/lib/system/libsystem_kernel.dylib"));
+#endif
   return name;
 }