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

extensions/browser/user_script_loader.cc

Index: extensions/browser/user_script_loader.cc
diff --git a/extensions/browser/user_script_loader.cc b/extensions/browser/user_script_loader.cc
index 2b836332feba5479d89b2d0b271eeab152d76386..cc0ce00cf82f4c2d9a8e0122ca8f6b1d082207c6 100644
--- a/extensions/browser/user_script_loader.cc
+++ b/extensions/browser/user_script_loader.cc
@@ -444,11 +444,24 @@ void UserScriptLoader::OnScriptsLoaded(
   // We've got scripts ready to go.
   shared_memory_.reset(shared_memory.release());
 
-  for (content::RenderProcessHost::iterator i(
-           content::RenderProcessHost::AllHostsIterator());
-       !i.IsAtEnd();
-       i.Advance()) {
-    SendUpdate(i.GetCurrentValue(), shared_memory_.get(), changed_hosts_);
+  // If user scripts are comming from a <webview>, will only notify the

[Nico, 2015/03/05 00:40:11]

nit: "coming"

+  // RenderProcessHost of that <webview>; otherwise will notify all of the
+  // RenderProcessHosts.
+  if (user_scripts && !user_scripts->empty() &&
+      (*user_scripts)[0].consumer_instance_type() ==
+          UserScript::ConsumerInstanceType::WEBVIEW) {
+    DCHECK_EQ(1u, user_scripts->size());
+    int render_process_id = (*user_scripts)[0].routing_info().render_process_id;
+    content::RenderProcessHost* host =
+        content::RenderProcessHost::FromID(render_process_id);
+    if (host)
+      SendUpdate(host, shared_memory_.get(), changed_hosts_);
+  } else {
+    for (content::RenderProcessHost::iterator i(
+            content::RenderProcessHost::AllHostsIterator());
+        !i.IsAtEnd(); i.Advance()) {
+      SendUpdate(i.GetCurrentValue(), shared_memory_.get(), changed_hosts_);
+    }
   }
   changed_hosts_.clear();