Enforce the 'requirements' field in manifests.

chrome/browser/extensions/extension_scoped_prefs.h

Index: chrome/browser/extensions/extension_scoped_prefs.h
diff --git a/chrome/browser/extensions/extension_scoped_prefs.h b/chrome/browser/extensions/extension_scoped_prefs.h
index 0989f143ed98c0f0e4edfe663e7b6f9536a25b43..d69b35cfcfef3d9850df8b908ffe41655f221c70 100644
--- a/chrome/browser/extensions/extension_scoped_prefs.h
+++ b/chrome/browser/extensions/extension_scoped_prefs.h
@@ -15,6 +15,12 @@ class ExtensionScopedPrefs {
                                    const std::string& key,
                                    base::Value* value) = 0;
 
+  // Sets the pref |key| for extension |id| to |value|.
+  virtual void UpdateExtensionPrefList(
+      const std::string& id,
+      const std::string& key,
+      const std::vector<std::string>& value) = 0;
+
   // Deletes the pref dictionary for extension |id|.
   virtual void DeleteExtensionPrefs(const std::string& id) = 0;
 
@@ -33,6 +39,13 @@ class ExtensionScopedPrefs {
       const std::string& pref_key,
       const base::ListValue** out_value) const = 0;
 
+  // Reads a list of string prefs |pref_key| from extension with id
+  // |extension_id|.
+  virtual bool ReadExtensionPrefStringList(
+      const std::string& extension_id,
+      const std::string& pref_key,
+      std::vector<std::string>* out_value) const = 0;
+
   // Reads a string pref |pref_key| from extension with id |extension_id|.
   virtual bool ReadExtensionPrefString(const std::string& extension_id,
                                        const std::string& pref_key,