Fix debug compilation after r18337

BUG=chromium:327298
LOG=N
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/115113009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18339 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/profile-generator.cc

@@ -487,7 +487,6 @@ CpuProfilesCollection::~CpuProfilesCollection() {
 
 bool CpuProfilesCollection::StartProfiling(const char* title,
                                            bool record_samples) {
-  ASSERT(uid > 0);
   current_profiles_semaphore_.Wait();
   if (current_profiles_.length() >= kMaxSimultaneousProfiles) {
     current_profiles_semaphore_.Signal();