Do not immediately block cross-renderer extension resource loads for non-web-triggered transitions

chrome/browser/extensions/chrome_url_request_util.cc

Index: chrome/browser/extensions/chrome_url_request_util.cc
diff --git a/chrome/browser/extensions/chrome_url_request_util.cc b/chrome/browser/extensions/chrome_url_request_util.cc
index 2ffd99d3d14668a9c68b091367c93acbf1a7e1cd..cd801a6fba7d547c3136bf384bb135bb7280f3cc 100644
--- a/chrome/browser/extensions/chrome_url_request_util.cc
+++ b/chrome/browser/extensions/chrome_url_request_util.cc
@@ -139,7 +139,8 @@ bool AllowCrossRendererResourceLoad(net::URLRequest* request,
   // If there aren't any explicitly marked web accessible resources, the
   // load should be allowed only if it is by DevTools. A close approximation is
   // checking if the extension contains a DevTools page.
-  if (!chrome_manifest_urls::GetDevToolsPage(extension).is_empty()) {
+  if (extension &&
+      !chrome_manifest_urls::GetDevToolsPage(extension).is_empty()) {
     *allowed = true;
     return true;
   }