[subresource_filter] add //chrome level unit test harness

content/public/test/navigation_simulator.cc

Index: content/public/test/navigation_simulator.cc
diff --git a/content/public/test/navigation_simulator.cc b/content/public/test/navigation_simulator.cc
index 33ae14213359fd3022f617241adfe66b5240a2c7..a83df10f43ec10b9defb36a73927d412863e0d18 100644
--- a/content/public/test/navigation_simulator.cc
+++ b/content/public/test/navigation_simulator.cc
@@ -168,8 +168,11 @@ void NavigationSimulator::Redirect(const GURL& new_url) {
       << "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;
 
@@ -225,8 +228,11 @@ void NavigationSimulator::Commit() {
       << "NavigationSimulator::Commit cannot be called after the "
          "navigation has finished";
 
-  if (state_ == INITIALIZATION)
+  if (state_ == INITIALIZATION) {
     Start();
+    if (state_ == FAILED)
+      return;
+  }
 
   PrepareCompleteCallbackOnHandle();
   if (IsBrowserSideNavigationEnabled() &&