Vibration API: use runtime flag, change from client to platform.

public/platform/Platform.h

Index: public/platform/Platform.h
diff --git a/public/platform/Platform.h b/public/platform/Platform.h
index b845c56b2d7406db6cb74f3368a9a7b1770856a7..a0d11c2b2327423799841ececf9a6f4d982e848c 100644
--- a/public/platform/Platform.h
+++ b/public/platform/Platform.h
@@ -378,6 +378,16 @@ public:
     virtual void callOnMainThread(void (*func)(void*), void* context) { }
 
 
+    // Vibration -----------------------------------------------------------
+
+    // Starts a vibration for the given duration in milliseconds. If there is currently an active
+    // vibration it will be cancelled before the new one is started.
+    virtual void vibrate(unsigned time) { }

[abarth-chromium, 2013/06/13 20:13:20]

time -> durationMS ?

+
+    // Cancels the current vibration, if there is one.
+    virtual void cancelVibration() { }
+
+
     // Testing -------------------------------------------------------------
 
 #define HAVE_WEBUNITTESTSUPPORT 1