suppress memory leak from v8 3.19.8.1

tools/heapcheck/suppressions.txt

Index: tools/heapcheck/suppressions.txt
diff --git a/tools/heapcheck/suppressions.txt b/tools/heapcheck/suppressions.txt
index 2c654750db811bc0a4f7121cb4a929db5f52bfaa..9989a262c8f6126a7ec889bd920527fe4d3b8dfd 100644
--- a/tools/heapcheck/suppressions.txt
+++ b/tools/heapcheck/suppressions.txt
@@ -1890,3 +1890,39 @@
    fun:std::operator+
    fun:TemplateURLServiceTest_ResetNonExtensionURLs_Test::TestBody
 }
+{
+   bug_246567a
+   Heapcheck:Leak
+   fun:v8::internal::PerThreadAssertScopeBase::AssertData
+   fun:v8::internal::PerThreadAssertScope::IsAllowed
+   fun:v8::internal::Heap::AllocateRaw
+   fun:v8::internal::Heap::Allocate
+   fun:v8::internal::Heap::AllocateForeign
+   fun:v8::internal::Heap::AllocateExternal
+   fun:v8::internal::Factory::NewExternal
+   fun:v8::External::New
+   fun:net::ProxyResolverV8::Context::InitV8
+   fun:net::ProxyResolverV8::SetPacScript
+   fun:net::ProxyResolverV8Tracing::Job::ExecuteProxyResolver
+   fun:net::ProxyResolverV8Tracing::Job::ExecuteBlocking
+}
+{
+   bug_246567b
+   Heapcheck:Leak
+   fun:v8::internal::PerThreadAssertScopeBase::AssertData
+   fun:v8::internal::PerThreadAssertScope::IsAllowed
+   fun:v8::internal::HandleScope::CreateHandle
+   fun:Handle
+   fun:MacroAssembler
+   fun:v8::internal::Deoptimizer::EnsureCodeForDeoptimizationEntry
+   fun:v8::internal::Isolate::Init
+   fun:v8::internal::V8::Initialize
+   fun:v8::internal::Snapshot::Initialize
+   fun:InitializeHelper
+   fun:v8::V8::Initialize
+   fun:v8::Locker::Initialize
+   fun:net::ProxyResolverV8::Context::InitV8
+   fun:net::ProxyResolverV8::SetPacScript
+   fun:net::ProxyResolverV8Tracing::Job::ExecuteProxyResolver
+   fun:net::ProxyResolverV8Tracing::Job::ExecuteBlocking
+}