GTK: Add TRACE_EVENTs around gtk ui events.

chrome/browser/ui/gtk/gtk_theme_service.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/gtk_theme_service.h"
 
 #include <gtk/gtk.h>
 
 #include <set>
 #include <string>
 
+#include "base/debug/trace_event.h"
 #include "base/environment.h"
 #include "base/nix/xdg_util.h"
 #include "base/stl_util.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/gtk/chrome_gtk_frame.h"
 #include "chrome/browser/ui/gtk/gtk_chrome_button.h"
@@ skipping 1174 matching lines @@
 }
 
 void GtkThemeService::OnDestroyLabel(GtkWidget* button) {
   std::map<GtkWidget*, GdkColor>::iterator it = labels_.find(button);
   if (it != labels_.end())
     labels_.erase(it);
 }
 
 gboolean GtkThemeService::OnSeparatorExpose(GtkWidget* widget,
                                             GdkEventExpose* event) {
+  UNSHIPPED_TRACE_EVENT0("ui::gtk", "GtkThemeService::OnSeparatorExpose");
   if (UsingNativeTheme())
     return FALSE;
 
   cairo_t* cr = gdk_cairo_create(GDK_DRAWABLE(widget->window));
   gdk_cairo_rectangle(cr, &event->area);
   cairo_clip(cr);
 
   GdkColor bottom_color = GetGdkColor(ThemeService::COLOR_TOOLBAR);
   double bottom_color_rgb[] = {
       static_cast<double>(bottom_color.red / 257) / 255.0,
@@ skipping 22 matching lines @@
   cairo_new_path(cr);
   cairo_set_line_width(cr, 1.0);
   cairo_move_to(cr, start_x, allocation.y);
   cairo_line_to(cr, start_x, allocation.y + allocation.height);
   cairo_stroke(cr);
   cairo_destroy(cr);
   cairo_pattern_destroy(pattern);
 
   return TRUE;
 }