Implement WebPrescientNetworking to trigger preconnect from Blink

chrome/browser/net/url_info.h

Index: chrome/browser/net/url_info.h
diff --git a/chrome/browser/net/url_info.h b/chrome/browser/net/url_info.h
index 54c81591d84c5dd5ef13d9f588c654b30a046675..63d8aa3edb6e3b4519464494c732104b67921531 100644
--- a/chrome/browser/net/url_info.h
+++ b/chrome/browser/net/url_info.h
@@ -51,6 +51,10 @@ class UrlInfo {
     LEARNED_REFERAL_MOTIVATED,  // Prior navigation taught us this resolution.
     SELF_REFERAL_MOTIVATED,  // Guess about need for a second connection.
 
+    MOUSE_DOWN_MOTIVATED, // Mouse-down link induced preconnect.
+    TAP_UNCONFIRMED_MOTIVATED, // Unconfirmed tap on a link induced preconnect.
+    TAP_DOWN_MOTIVATED, // Tap-down link induced preconnect.

[jar (doing other things), 2013/05/04 00:32:05]

nit: indent comments to align them (style as in lines 38-41).

[kouhei (in TOK), 2013/05/07 09:16:12]

Done.

+
     MAX_MOTIVATED  // Beyond all enums, for use in histogram bounding.
   };