Originally marked as flaky for all platforms:  crbug.com/760543 

It is crashing on a DCHECK

#
# Fatal error in ../../v8/src/profiler/heap-snapshot-generator.cc, line 1870
# Debug check failed: !is_weak.
#
0   libbase.dylib                       0x000000011b274c0e base::debug::StackTrace::StackTrace(unsigned long) + 174
1   libbase.dylib                       0x000000011b274ccd base::debug::StackTrace::StackTrace(unsigned long) + 29
2   libbase.dylib                       0x000000011b27314c base::debug::StackTrace::StackTrace() + 28
3   libgin.dylib                        0x0000000126bf9225 gin::(anonymous namespace)::PrintStackTrace() + 37
4   libv8_libbase.dylib                 0x000000013f904d7c V8_Fatal(char const*, int, char const*, ...) + 220
5   libv8_libbase.dylib                 0x000000013f904915 v8::base::(anonymous namespace)::DefaultDcheckHandler(char const*, int, char const*) + 21
6   libv8.dylib                         0x00000001274eed54 v8::internal::V8HeapExplorer::SetGcSubrootReference(v8::internal::VisitorSynchronization::SyncTag, bool, v8::internal::Object*) + 660
7   libv8.dylib                         0x00000001274ee05b v8::internal::RootsReferencesExtractor::FillReferences(v8::internal::V8HeapExplorer*) + 363
8   libv8.dylib                         0x00000001274ede36 v8::internal::V8HeapExplorer::IterateAndExtractReferences(v8::internal::SnapshotFiller*) + 406
9   libv8.dylib                         0x00000001274f4167 v8::internal::HeapSnapshotGenerator::GenerateSnapshot() + 375
10  libv8.dylib                         0x00000001274e292a v8::internal::HeapProfiler::TakeSnapshot(v8::ActivityControl*, v8::HeapProfiler::ObjectNameResolver*) + 106
11  libv8.dylib                         0x0000000127886017 v8_inspector::V8HeapProfilerAgentImpl::takeHeapSnapshot(v8_inspector::protocol::Maybe<bool>) + 359

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3c60fc04fff2ba780bbfe1322b118eabc756d521

commit 3c60fc04fff2ba780bbfe1322b118eabc756d521
Author: Will Chen <chenwilliam@chromium.org>
Date: Tue Jan 09 23:44:57 2018

DevTools: mark as flaky only on Debug - http/tests/devtools/profiler/heap-snapshot-inspect-dom-wrapper.js

This test is only flaky on Debug according to the test flakiness dashboard:
https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=webkit_layout_tests&tests=http%2Ftests%2Fdevtools%2Fprofiler%2Fheap-snapshot-inspect-dom-wrapper.js

Bug:  799619 
Change-Id: I85e14ceb1d15771a803caaf4506e8332c19f9a10
Reviewed-on: https://chromium-review.googlesource.com/852524
Commit-Queue: Alexei Filippov <alph@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#528170}
[modify] https://crrev.com/3c60fc04fff2ba780bbfe1322b118eabc756d521/third_party/WebKit/LayoutTests/TestExpectations

Test failures are processed as a part of a dedicated triage, bulk-closing the bugs.