[heap profiler] Add test for NATIVE_WITH_THREAD_NAMES mode

Change-Id: I2ffd5db7f3ea2ab30be495e496663b98ffa942fb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1573007Reviewed-by: Erik Chen <erikchen@chromium.org>
Commit-Queue: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652285}

chrome/browser/profiling_host/memlog_browsertest.cc

@@ -117,8 +117,9 @@ std::vector<TestParam> GetParams() {
                                         Mode::kBrowser, Mode::kGpu};
 
   std::vector<mojom::StackMode> stack_modes{
-      mojom::StackMode::MIXED, mojom::StackMode::NATIVE_WITHOUT_THREAD_NAMES,
-      mojom::StackMode::PSEUDO};
+      mojom::StackMode::MIXED, mojom::StackMode::PSEUDO,
+      mojom::StackMode::NATIVE_WITHOUT_THREAD_NAMES,
+      mojom::StackMode::NATIVE_WITH_THREAD_NAMES};
 
   for (const auto& stack_mode : stack_modes) {
     for (const auto& mode : dynamic_start_modes) {