[WIP] WebRestrictions

android_webview/renderer/aw_content_renderer_client.cc

Index: android_webview/renderer/aw_content_renderer_client.cc
diff --git a/android_webview/renderer/aw_content_renderer_client.cc b/android_webview/renderer/aw_content_renderer_client.cc
index 7203f90a47cf216fcb459e9f90f5696c408d2dac..a59da63cd8c51e05e5da3e7f09ac171894d63ca9 100644
--- a/android_webview/renderer/aw_content_renderer_client.cc
+++ b/android_webview/renderer/aw_content_renderer_client.cc
@@ -6,6 +6,7 @@
 
 #include <vector>
 
+#include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/common/aw_resource.h"
 #include "android_webview/common/aw_switches.h"
 #include "android_webview/common/render_view_messages.h"
@@ -28,6 +29,8 @@
 #include "components/autofill/content/renderer/password_autofill_agent.h"
 #include "components/printing/renderer/print_web_view_helper.h"
 #include "components/visitedlink/renderer/visitedlink_slave.h"
+#include "components/web_restriction/web_restriction_gin_wrapper.h"
+#include "components/web_restriction/web_restriction_provider.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/renderer/document_state.h"
 #include "content/public/renderer/navigation_state.h"
@@ -175,7 +178,7 @@ bool AwContentRendererClient::HasErrorPage(int http_status_code,
 }
 
 void AwContentRendererClient::GetNavigationErrorStrings(
-    content::RenderFrame* /* render_frame */,
+    content::RenderFrame* render_frame,
     const blink::WebURLRequest& failed_request,
     const blink::WebURLError& error,
     std::string* error_html,
@@ -207,6 +210,15 @@ void AwContentRendererClient::GetNavigationErrorStrings(
         ResourceBundle::GetSharedInstance().GetRawDataResource(
             IDR_AW_LOAD_ERROR_HTML),
         replacements, nullptr);
+    if (error.reason == net::ERR_BLOCKED_BY_ADMINISTRATOR) {
+      // Move to aw/common/ if chrome's solution is too complicated
+      auto web_restriction_provider =
+          AwBrowserContext::GetDefault()->GetWebRestrictionProvider();
+      if (web_restriction_provider->SupportsCustomErrorPage())
+        *error_html = web_restriction_provider->GetErrorHtml();
+      if (web_restriction_provider->SupportsRequest())
+        web_restriction::WebRestrictionGinWrapper::Install(render_frame);
+    }
   }
   if (error_description) {
     if (error.localizedDescription.isEmpty())