Split onc::IsRecommendedValue into onc_utils.cc

Separate out the Recommended parsing from NetworkPropertyUIData so that
it can be used independently.

BUG=279351

Review URL: https://codereview.chromium.org/433143002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287375 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 25 insertions, 0 deletions

diff --git a/chromeos/network/onc/onc_utils.cc b/chromeos/network/onc/onc_utils.cc
index 433054f..73b5deb 100644
--- a/chromeos/network/onc/onc_utils.cc
+++ b/chromeos/network/onc/onc_utils.cc
@@ -672,5 +672,26 @@ NetworkTypePattern NetworkTypePatternFromOncType(const std::string& type) {
   return NetworkTypePattern::Default();
 }
 
+bool IsRecommendedValue(const base::DictionaryValue* onc,
+                        const std::string& property_key) {
+  std::string property_basename, recommended_property_key;
+  size_t pos = property_key.find_last_of('.');
+  if (pos != std::string::npos) {
+    // 'WiFi.AutoConnect' -> 'AutoConnect', 'WiFi.Recommended'
+    property_basename = property_key.substr(pos + 1);
+    recommended_property_key =
+        property_key.substr(0, pos + 1) + ::onc::kRecommended;
+  } else {
+    // 'Name' -> 'Name', 'Recommended'
+    property_basename = property_key;
+    recommended_property_key = ::onc::kRecommended;
+  }
+
+  const base::ListValue* recommended_keys = NULL;
+  return (onc->GetList(recommended_property_key, &recommended_keys) &&
+          recommended_keys->Find(base::StringValue(property_basename)) !=
+          recommended_keys->end());
+}
+
 }  // namespace onc
 }  // namespace chromeos
diff --git a/chromeos/network/onc/onc_utils.h b/chromeos/network/onc/onc_utils.h
index 261ae49..c31cd2e 100644
--- a/chromeos/network/onc/onc_utils.h
+++ b/chromeos/network/onc/onc_utils.h
@@ -130,6 +130,10 @@ CHROMEOS_EXPORT bool ResolveServerCertRefsInNetwork(
 CHROMEOS_EXPORT NetworkTypePattern NetworkTypePatternFromOncType(
     const std::string& type);
 
+// Returns true if |property_key| is a recommended value in the ONC dictionary.
+CHROMEOS_EXPORT bool IsRecommendedValue(const base::DictionaryValue* onc,
+                                        const std::string& property_key);
+
 }  // namespace onc
 }  // namespace chromeos