Add AllowNetworkPrediction preference name and enum.

chrome/browser/net/predictor.h

Index: chrome/browser/net/predictor.h
diff --git a/chrome/browser/net/predictor.h b/chrome/browser/net/predictor.h
index 3234e17c71d3c02cdb167d2e08d8b84ae015951e..76a5de5d66e182e259932b93faae5f9b3d4bc232 100644
--- a/chrome/browser/net/predictor.h
+++ b/chrome/browser/net/predictor.h
@@ -113,6 +113,15 @@ class Predictor {
   // TODO(jar): We should do a persistent field trial to validate/optimize this.
   static const int kMaxUnusedSocketLifetimeSecondsWithoutAGet;
 
+  // Enum describing when to allow network predictions based on connection type.
+  // The same enum must be used by the platform-dependent components.
+  // TODO(bnc): implement as per crbug.com/334602.
+  enum NetworkPredictionOptions {
+    NETWORK_PREDICTION_ALWAYS,
+    NETWORK_PREDICTION_WIFI_ONLY,
+    NETWORK_PREDICTION_NEVER
+  };

[mmenke, 2014/06/20 14:48:28]

nit:  Looks like enums go before constants, according to the style guide.

[Bence, 2014/06/20 15:13:55]

Done.

+
   // |max_concurrent| specifies how many concurrent (parallel) prefetches will
   // be performed. Host lookups will be issued through |host_resolver|.
   explicit Predictor(bool preconnect_enabled);