Introduce the ThrottleManager

components/subresource_filter/content/browser/activation_state_computing_navigation_throttle_unittest.cc

 // Copyright 2017 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 "components/subresource_filter/content/browser/activation_state_computing_navigation_throttle.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/callback.h"
@@ skipping 152 matching lines @@
                   parent_activation_state_.value());
     test_throttle_ = throttle.get();
     navigation_handle->RegisterThrottleForTesting(std::move(throttle));
   }
 
   void ReadyToCommitNavigation(
       content::NavigationHandle* navigation_handle) override {
     if (!test_throttle_)
       return;
     ASSERT_EQ(navigation_handle, test_throttle_->navigation_handle());
-    last_activation_state_ = test_throttle_->GetActivationState();
-    if (last_activation_state_.value().activation_level ==
-        ActivationLevel::DISABLED) {
-      EXPECT_FALSE(test_throttle_->ReleaseFilter());
+    if (test_throttle_->filter())
+      test_throttle_->WillSendActivationToRenderer();
+
+    if (auto filter = test_throttle_->ReleaseFilter()) {
+      EXPECT_NE(ActivationLevel::DISABLED,
+                filter->activation_state().activation_level);
+      last_activation_state_ = filter->activation_state();
     } else {
-      EXPECT_TRUE(test_throttle_->ReleaseFilter());
+      last_activation_state_ = ActivationState(ActivationLevel::DISABLED);
     }
   }
 
   void DidFinishNavigation(
       content::NavigationHandle* navigation_handle) override {
     if (!test_throttle_)
       return;
     last_committed_frame_host_ = navigation_handle->GetRenderFrameHost();
     test_throttle_ = nullptr;
   }
@@ skipping 215 matching lines @@
   SimulateStartAndExpectToProceed();
   SimulateCommitAndExpectToProceed();
 
   state = last_activation_state();
   EXPECT_EQ(ActivationLevel::ENABLED, state.activation_level);
   EXPECT_TRUE(state.filtering_disabled_for_document);
   EXPECT_TRUE(state.generic_blocking_rules_disabled);
 }
 
 }  // namespace subresource_filter