GTK: Add TRACE_EVENTs around gtk ui events.

chrome/browser/ui/gtk/tabs/tab_gtk.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/ui/gtk/tabs/tab_gtk.h"
 
 #include <gdk/gdkkeysyms.h>
 
 #include "base/bind.h"
+#include "base/debug/trace_event.h"
 #include "base/memory/singleton.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/ui/gtk/accelerators_gtk.h"
 #include "chrome/browser/ui/gtk/gtk_input_event_box.h"
 #include "chrome/browser/ui/gtk/menu_gtk.h"
 #include "chrome/browser/ui/gtk/tabs/tab_strip_menu_controller.h"
 #include "chrome/browser/ui/tabs/tab_menu_model.h"
 #include "chrome/browser/ui/tabs/tab_resources.h"
 #include "grit/generated_resources.h"
@@ skipping 74 matching lines @@
   if (menu_controller_.get()) {
     // The menu is showing. Close the menu.
     menu_controller_->Cancel();
 
     // Invoke this so that we hide the highlight.
     ContextMenuClosed();
   }
 }
 
 void TabGtk::Raise() const {
+  UNSHIPPED_TRACE_EVENT0("ui::gtk", "TabGtk::Raise");
+
   GdkWindow* window = gtk_input_event_box_get_window(
       GTK_INPUT_EVENT_BOX(event_box_));
   gdk_window_raise(window);
   TabRendererGtk::Raise();
 }
 
 gboolean TabGtk::OnButtonPressEvent(GtkWidget* widget, GdkEventButton* event) {
   // Every button press ensures either a button-release-event or a drag-fail
   // signal for |widget|.
   if (event->button == 1 && event->type == GDK_BUTTON_PRESS) {
@@ skipping 231 matching lines @@
     gdk_event_free(last_mouse_down_);
     last_mouse_down_ = NULL;
   }
 
   // Notify the drag helper that we're done with any potential drag operations.
   // Clean up the drag helper, which is re-created on the next mouse press.
   delegate_->EndDrag(canceled);
 
   observer_.reset();
 }