Merge "Merge remote-tracking branch 'origin/upstream-master' into 79-based" into 79-based

1 files changed, 36 insertions, 0 deletions

diff --git a/chromium/chrome/renderer/performance_manager/mechanisms/tcmalloc_tunables_impl.cc b/chromium/chrome/renderer/performance_manager/mechanisms/tcmalloc_tunables_impl.cc
new file mode 100644
index 00000000000..77c60805204
--- /dev/null
+++ b/chromium/chrome/renderer/performance_manager/mechanisms/tcmalloc_tunables_impl.cc
@@ -0,0 +1,36 @@
+// Copyright 2019 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/renderer/performance_manager/mechanisms/tcmalloc_tunables_impl.h"
+
+#include "base/allocator/allocator_extension.h"
+#include "mojo/public/cpp/bindings/self_owned_receiver.h"
+
+namespace performance_manager {
+namespace mechanism {
+
+namespace {
+constexpr char kMaxTotalThreadCacheBytesKey[] =
+    "tcmalloc.max_total_thread_cache_bytes";
+}  // namespace
+
+TcmallocTunablesImpl::TcmallocTunablesImpl() = default;
+TcmallocTunablesImpl::~TcmallocTunablesImpl() = default;
+
+// Static
+void TcmallocTunablesImpl::Create(
+    mojo::PendingReceiver<tcmalloc::mojom::TcmallocTunables> receiver) {
+  mojo::MakeSelfOwnedReceiver(std::make_unique<TcmallocTunablesImpl>(),
+                              std::move(receiver));
+}
+
+void TcmallocTunablesImpl::SetMaxTotalThreadCacheBytes(uint32_t size_bytes) {
+  bool res = base::allocator::SetNumericProperty(kMaxTotalThreadCacheBytesKey,
+                                                 size_bytes);
+  LOG_IF(ERROR, !res) << "Unable to SetNumericProperty("
+                      << kMaxTotalThreadCacheBytesKey << ") to " << size_bytes;
+}
+
+}  // namespace mechanism
+}  // namespace performance_manager