Navigation throttle for the Safe Browsing Subresource Filter.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 734bd648622910c5b38e8b5d32d85f8c8f7da74b..40a935ebe561dddcebbd12e717e31fc7093dde1d 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -132,6 +132,7 @@
 #include "components/security_interstitials/core/ssl_error_ui.h"
 #include "components/signin/core/common/profile_management_switches.h"
 #include "components/startup_metric_utils/browser/startup_metric_host_impl.h"
+#include "components/subresource_filter/content/browser/subresource_filter_navigation_throttle.h"
 #include "components/translate/core/common/translate_switches.h"
 #include "components/url_formatter/url_fixer.h"
 #include "components/variations/variations_associated_data.h"
@@ -2914,6 +2915,15 @@ ChromeContentBrowserClient::CreateThrottlesForNavigation(
     throttles.push_back(new extensions::ExtensionNavigationThrottle(handle));
 #endif
 
+  if (handle->IsInMainFrame() && handle->GetURL().SchemeIsHTTPOrHTTPS()) {
+    // TODO(melandory): Activation logic should be moved to the
+    // WebContentsObserver, once ReadyToCommitNavigation is available on
+    // pre-PlzNavigate world (tracking bug: https://crbug.com/621856).
+    throttles.push_back(
+        subresource_filter::SubresourceFilterNavigationThrottle::Create(
+            handle));
+  }
+
   return throttles;
 }