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// 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 "content/test/fuzzer/fuzzer_support.h"
#include "third_party/blink/public/platform/scheduler/test/renderer_scheduler_test_support.h"
#include "third_party/blink/public/platform/web_runtime_features.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/public/web/web_view.h"
#include "third_party/blink/public/web/web_widget.h"
static content::Env* env;
bool Initialize() {
blink::WebRuntimeFeatures::EnableDisplayLocking(true);
env = new content::Env();
return true;
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
static bool initialized = Initialize();
// Suppress unused variable warning.
(void)initialized;
// Only handle reasonable size inputs.
if (size < 1 || size > 10000)
return 0;
std::string data_as_string(reinterpret_cast<const char*>(data), size);
int num_rafs = std::hash<std::string>()(data_as_string) % 10;
env->adapter->LoadHTML(data_as_string, "");
// Delay each frame 17ms which is roughly the length of a frame when running
// at 60fps.
auto frame_delay = base::TimeDelta::FromMillisecondsD(17);
for (int i = 0; i < num_rafs; ++i) {
base::RunLoop run_loop;
blink::scheduler::GetSingleThreadTaskRunnerForTesting()->PostDelayedTask(
FROM_HERE, run_loop.QuitClosure(), frame_delay);
run_loop.Run();
env->adapter->GetMainFrame()
->View()
->MainFrameWidget()
->UpdateAllLifecyclePhases(
blink::WebWidget::LifecycleUpdateReason::kTest);
}
return 0;
}
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