Wake Lock API implementation (Blink part)

public/web/WebFrameClient.h

Index: public/web/WebFrameClient.h
diff --git a/public/web/WebFrameClient.h b/public/web/WebFrameClient.h
index 187296cdf0740581fb3f88b97bb7af3f4aca0167..cf8d5bb115eac25d1e47b18dc078f1c93395eeec 100644
--- a/public/web/WebFrameClient.h
+++ b/public/web/WebFrameClient.h
@@ -85,6 +85,7 @@ class WebString;
 class WebURL;
 class WebURLResponse;
 class WebUserMediaClient;
+class WebWakeLockClient;
 class WebWorkerContentSettingsClientProxy;
 struct WebColorSuggestion;
 struct WebConsoleMessage;
@@ -514,6 +515,9 @@ public:
     // A WebSocket object is going to open a new WebSocket connection.
     virtual void willOpenWebSocket(WebSocketHandle*) { }
 
+    // Wake Lock -----------------------------------------------------
+
+    virtual WebWakeLockClient* wakeLockClient() { return 0; }
 
     // Geolocation ---------------------------------------------------------