[subresource_filter] add //chrome level unit test harness

content/public/test/navigation_simulator.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 "content/public/test/navigation_simulator.h"
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "content/browser/frame_host/navigation_handle_impl.h"
@@ skipping 150 matching lines @@
   }
 }
 
 void NavigationSimulator::Redirect(const GURL& new_url) {
   CHECK(state_ <= STARTED) << "NavigationSimulator::Redirect should be "
                               "called before Fail or Commit";
   CHECK_EQ(0, num_did_finish_navigation_called_)
       << "NavigationSimulator::Redirect cannot be called after the "
          "navigation has finished";
 
-  if (state_ == INITIALIZATION)
+  if (state_ == INITIALIZATION) {
     Start();
+    if (state_ == FAILED)
+      return;
+  }
 
   navigation_url_ = new_url;
 
   int previous_num_will_redirect_request_called =
       num_will_redirect_request_called_;
   int previous_did_redirect_navigation_called =
       num_did_redirect_navigation_called_;
 
   PrepareCompleteCallbackOnHandle();
   if (IsBrowserSideNavigationEnabled()) {
@@ skipping 35 matching lines @@
 }
 
 void NavigationSimulator::Commit() {
   CHECK_LE(state_, STARTED) << "NavigationSimulator::Commit can only be "
                                "called once, and cannot be called after "
                                "NavigationSimulator::Fail";
   CHECK_EQ(0, num_did_finish_navigation_called_)
       << "NavigationSimulator::Commit cannot be called after the "
          "navigation has finished";
 
-  if (state_ == INITIALIZATION)
+  if (state_ == INITIALIZATION) {
     Start();
+    if (state_ == FAILED)
+      return;
+  }
 
   PrepareCompleteCallbackOnHandle();
   if (IsBrowserSideNavigationEnabled() &&
       render_frame_host_->frame_tree_node()->navigation_request()) {
     render_frame_host_->PrepareForCommit();
     // Synchronous failure can cause the navigation to finish here.
     if (!handle_) {
       state_ = FAILED;
       return;
     }
@@ skipping 319 matching lines @@
       base::Bind(&NavigationSimulator::OnThrottleChecksComplete,
                  weak_factory_.GetWeakPtr()));
 }
 
 RenderFrameHost* NavigationSimulator::GetFinalRenderFrameHost() {
   CHECK_EQ(state_, FINISHED);
   return render_frame_host_;
 }
 
 }  // namespace content