Refactoring: de-couple Extensions from "script injection System" [render side]:2

extensions/renderer/user_script_injector.cc

Index: extensions/renderer/user_script_injector.cc
diff --git a/extensions/renderer/user_script_injector.cc b/extensions/renderer/user_script_injector.cc
index 7a4c6e93b128003b5f374e2255da5750ea9a1650..2d49ca139cb08dd5d5979e0c67f1b8c2ff64cc09 100644
--- a/extensions/renderer/user_script_injector.cc
+++ b/extensions/renderer/user_script_injector.cc
@@ -8,6 +8,7 @@
 
 #include "base/lazy_instance.h"
 #include "content/public/common/url_constants.h"
+#include "content/public/renderer/render_view.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "extensions/renderer/script_context.h"
@@ -131,6 +132,12 @@ PermissionsData::AccessType UserScriptInjector::CanExecuteOnFrame(
   if (tab_id == -1)
     return PermissionsData::ACCESS_ALLOWED;
 
+  int routing_id = content::RenderView::FromWebView(web_frame->top()->view())
+                       ->GetRoutingID();
+  if (script_->routing_info().render_view_id == routing_id &&
+      script_->consumer_instance_info().type() == ConsumerInstanceInfo::WEBVIEW)
+    return PermissionsData::ACCESS_ALLOWED;
+
   GURL effective_document_url = ScriptContext::GetEffectiveDocumentURL(
       web_frame, web_frame->document().url(), script_->match_about_blank());
   return injection_host->CanExecuteOnFrame(