Add WebPrescientNetworking to trigger preconnect from Blink.

Source/core/platform/network/Preconnect.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef StorageQuotaCallback_h
-#define StorageQuotaCallback_h
+#ifndef Preconnect_h
+#define Preconnect_h
 
-#include "wtf/RefCounted.h"
+#include "wtf/Forward.h"

[tkent, 2013/05/09 03:31:16]

Please sort includes.

[kouhei (in TOK), 2013/05/09 03:42:55]

Done.

+#include "core/platform/KURL.h"
 
 namespace WebCore {
 
-class StorageQuotaCallback : public RefCounted<StorageQuotaCallback> {
-public:
-    virtual ~StorageQuotaCallback() { }
-    virtual bool handleEvent(unsigned long long grantedQuotaInBytes) = 0;
+enum PreconnectMotivation {
+    PreconnectMotivationLinkMouseDown,
+    PreconnectMotivationLinkMouseOver,
+    PreconnectMotivationLinkTapUnconfirmed,
+    PreconnectMotivationLinkTapDown,
 };
 
-} // namespace
+void preconnect(const KURL& url, PreconnectMotivation motivation);
 
-#endif // StorageQuotaCallback_h
+}
+
+#endif