Fix for WebView accessible resources.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 9991e3b306d86ba9722a1256efed2b1e9aa5daa7..33c1acde2e8fafa6a8e698e23781f971002362e7 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -404,6 +404,8 @@ void ChromeContentRendererClient::RenderThreadStarted() {
   permissions_policy_delegate_.reset(
       new extensions::RendererPermissionsPolicyDelegate(
           extension_dispatcher_.get()));
+  resource_request_policy_.reset(
+      new extensions::ResourceRequestPolicy(extension_dispatcher_.get()));
   guest_view_container_dispatcher_.reset(
       new extensions::ExtensionsGuestViewContainerDispatcher());
 #endif
@@ -1288,16 +1290,17 @@ bool ChromeContentRendererClient::WillSendRequest(
   // URL to something invalid to prevent the request and cause an error.
 #if defined(ENABLE_EXTENSIONS)
   if (url.SchemeIs(extensions::kExtensionScheme) &&
-      !extensions::ResourceRequestPolicy::CanRequestResource(url, frame,
-                                                             transition_type)) {
+      !(resource_request_policy_ &&

[not at google - send to devlin, 2015/09/03 20:17:53]

I don't think it's possible for this to be null?

[paulmeyer, 2015/09/08 18:51:36]

I didn't think so either, but I thought it would be safer to use this check
anyways in case someone changes something in the future that makes it possible
to be null. I'll remove it though.

[not at google - send to devlin, 2015/09/08 20:10:24]

If somebody changes it to be null, they can deal with it (... and the crash it
will cause). By default nothing should be null.

+        resource_request_policy_->CanRequestResource(url, frame,
+                                                     transition_type))) {
     *new_url = GURL(chrome::kExtensionInvalidRequestURL);
     return true;
   }
 
   if (url.SchemeIs(extensions::kExtensionResourceScheme) &&
-      !extensions::ResourceRequestPolicy::CanRequestExtensionResourceScheme(
-          url,
-          frame)) {
+      !(resource_request_policy_ &&
+        resource_request_policy_->CanRequestExtensionResourceScheme(url,
+                                                                    frame))) {
     *new_url = GURL(chrome::kExtensionResourceInvalidRequestURL);
     return true;
   }