Make net::URLRequestContext a MemoryDumpProvider

net/url_request/url_request_context_unittest.cc

Index: net/url_request/url_request_context_unittest.cc
diff --git a/net/url_request/url_request_context_unittest.cc b/net/url_request/url_request_context_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..627e6f9a1e85f29737f5b321a1109236b8ab3b26
--- /dev/null
+++ b/net/url_request/url_request_context_unittest.cc
@@ -0,0 +1,44 @@
+// Copyright 2016 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 "net/url_request/url_request_context.h"
+
+#include <memory>
+
+#include "base/trace_event/process_memory_dump.h"
+#include "net/proxy/proxy_config_service_fixed.h"
+#include "net/url_request/url_request_context_builder.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace net {
+
+// Checks if the dump provider runs without crashing and dumps root objects.
+TEST(URLRequestContextTest, MemoryDumpProvider) {
+  base::trace_event::MemoryDumpArgs dump_args = {
+      base::trace_event::MemoryDumpLevelOfDetail::DETAILED};
+  std::unique_ptr<base::trace_event::ProcessMemoryDump> process_memory_dump(
+      new base::trace_event::ProcessMemoryDump(nullptr, dump_args));
+  URLRequestContextBuilder builder;
+#if defined(OS_LINUX) || defined(OS_ANDROID)
+  builder.set_proxy_config_service(
+      base::MakeUnique<ProxyConfigServiceFixed>(ProxyConfig::CreateDirect()));
+#endif  // defined(OS_LINUX) || defined(OS_ANDROID)
+  std::unique_ptr<URLRequestContext> context(builder.Build());
+  context->OnMemoryDump(dump_args, process_memory_dump.get());
+  const base::trace_event::ProcessMemoryDump::AllocatorDumpsMap&
+      allocator_dumps = process_memory_dump->allocator_dumps();
+
+  bool did_dump_url_request_context = false;
+  // bool did_dump_space_stats = false;
+  // bool did_dump_objects_stats = false;
+  for (const auto& it : allocator_dumps) {
+    const std::string& dump_name = it.first;
+    if (dump_name.find("net/url_request_context") != std::string::npos)
+      did_dump_url_request_context = true;
+  }
+
+  ASSERT_TRUE(did_dump_url_request_context);
+}
+
+}  // namespace net