124   if (backtrace->NumFrames() == 0) {  in DumpFrames()
129   for (size_t i = 0; i < backtrace->NumFrames(); i++) {  in DumpFrames()
194   ASSERT_GT(backtrace->NumFrames(), static_cast<size_t>(0))  in VerifyLevelDump()
196   ASSERT_LT(backtrace->NumFrames(), static_cast<size_t>(MAX_BACKTRACE_FRAMES))  in VerifyLevelDump()
202   for (size_t i = backtrace->NumFrames()-1; i > 2; i--) {  in VerifyLevelDump()
232   return (backtrace->NumFrames() == MAX_BACKTRACE_FRAMES);  in ReadyMaxBacktrace()
236   ASSERT_EQ(backtrace->NumFrames(), static_cast<size_t>(MAX_BACKTRACE_FRAMES))  in VerifyMaxDump()
280   ASSERT_TRUE(backtrace->NumFrames() != 0);  in TEST_F()
301   ASSERT_TRUE(backtrace->NumFrames() != 0);  in TEST_F()
330   ASSERT_EQ(bt_all->NumFrames(), bt_ign1->NumFrames() + 1) << "All backtrace:\n"  in VerifyIgnoreFrames()
334   ASSERT_EQ(bt_all->NumFrames(), bt_ign2->NumFrames() + 2) << "All backtrace:\n"  in VerifyIgnoreFrames()
341   for (size_t i = 0; i < bt_ign2->NumFrames(); i++) {  in VerifyIgnoreFrames()
1379   ASSERT_LT(backtrace->NumFrames(), static_cast<size_t>(MAX_BACKTRACE_FRAMES))  in VerifyUnreadableElfFrame()
1384   ASSERT_LT(frame_num, backtrace->NumFrames()) << DumpFrames(backtrace);  in VerifyUnreadableElfFrame()
1613   ASSERT_EQ(1U, backtrace->NumFrames());  in UnwindFromDevice()
1620   ASSERT_EQ(0U, backtrace->NumFrames());  in UnwindFromDevice()
1632   ASSERT_EQ(1U, backtrace->NumFrames());  in UnwindFromDevice()
1639   ASSERT_EQ(0U, backtrace->NumFrames());  in UnwindFromDevice()
1832   ASSERT_NE(0U, backtrace->NumFrames());  in TestFrameSkipNumbering()