Refactoring: de-couple Extensions from "script injection System" [render side]:4

extensions/common/extension_set.h

Index: extensions/common/extension_set.h
diff --git a/extensions/common/extension_set.h b/extensions/common/extension_set.h
index c46163faef6a9ffb53e19c07160bd98ec17c531f..f672330c518d29bec9e4f126a561b03d448fb8e9 100644
--- a/extensions/common/extension_set.h
+++ b/extensions/common/extension_set.h
@@ -15,6 +15,8 @@
 #include "extensions/common/extension.h"
 #include "url/gurl.h"
 
+struct HostID;
+
 namespace extensions {
 
 // The one true extension container. Extensions are identified by their id.
@@ -124,6 +126,9 @@ class ExtensionSet {
   // Gets the IDs of all extensions in the set.
   ExtensionIdSet GetIDs() const;
 
+  // Gets the HostIDs of all extensions in the set.
+  std::set<HostID> GetHostIDs() const;

[Devlin, 2015/03/09 16:00:04]

This doesn't really belong here.  An ExtensionSet is an extensions concept, but
HostId is a script injection concept.

[Xi Han, 2015/03/09 19:12:36]

Moved to UserScriptSetManager.

+
   // Returns true if |info| should get extension api bindings and be permitted
   // to make api calls. Note that this is independent of what extension
   // permissions the given extension has been granted.