Implement THROTTLED priority semantics.

net/base/network_throttle_manager_unittest.cc

-// 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/base/network_throttle_manager.h"
-
-#include <memory>
-
-#include "net/base/request_priority.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace net {
-
-namespace {
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-class NetworkThrottleManagerTest : public testing::Test,
-                                   NetworkThrottleManager::ThrottleDelegate {
- public:
-  NetworkThrottleManagerTest()
-      : throttler_(NetworkThrottleManager::CreateThrottler()) {}
-
- protected:
-  std::unique_ptr<NetworkThrottleManager::Throttle> CreateThrottle(
-      net::RequestPriority priority,
-      bool expected_throttle_state) {
-    std::unique_ptr<NetworkThrottleManager::Throttle> throttle(
-        throttler_->CreateThrottle(this, priority, false));
-    EXPECT_EQ(expected_throttle_state, throttle->IsThrottled());
-    return throttle;
-  }
-
- private:
-  // NetworkThrottleManager::Delegate
-  void OnThrottleStateChanged() override { ADD_FAILURE(); }
-
-  std::unique_ptr<NetworkThrottleManager> throttler_;
-};
-
-// Check to confirm that all created throttles start unthrottled for the
-// current null implementation.
-TEST_F(NetworkThrottleManagerTest, AllUnthrottled) {
-  for (int i = MINIMUM_PRIORITY; i <= MAXIMUM_PRIORITY; ++i) {
-    CreateThrottle(static_cast<RequestPriority>(i), false);
-  }
-}
-
-}  // namespace
-
-}  // namespace net