linux: port Jankometer

chrome/common/gtk_util.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_COMMON_GTK_UTIL_H_
 #define CHROME_COMMON_GTK_UTIL_H_
 
 #include <gtk/gtk.h>
 #include <string>
 
 #include "base/gfx/point.h"
 #include "base/gfx/rect.h"
 #include "chrome/common/x11_util.h"
 #include "webkit/glue/window_open_disposition.h"
 
 typedef struct _GtkWidget GtkWidget;
 
 namespace event_utils {
 
 // Translates event flags into what kind of disposition they represent.
 // For example, a middle click would mean to open a background tab.
 // event_flags are the state in the GdkEvent structure.
 WindowOpenDisposition DispositionFromEventFlags(guint state);
 
+// Get the timestamp (milliseconds) out of a GdkEvent.
+// Returns 0 if the event has no timestamp.
+guint32 GetGdkEventTime(GdkEvent* event);
+
 }  // namespace event_utils
 
 namespace gtk_util {
 
 // Constants relating to the layout of dialog windows:
 // (See http://library.gnome.org/devel/hig-book/stable/design-window.html.en)
 
 // Spacing between controls of the same group.
 const int kControlSpacing = 6;
 
@@ skipping 65 matching lines @@
 // Returns the mirrored x value for |bounds| if the layout is RTL; otherwise,
 // the original value is returned unchanged.
 int MirroredLeftPointForRect(GtkWidget* widget, const gfx::Rect& bounds);
 
 // Returns true if the pointer is currently inside the widget.
 bool WidgetContainsCursor(GtkWidget* widget);
 
 }  // namespace gtk_util
 
 #endif  // CHROME_COMMON_GTK_UTIL_H_