Move creation and ownership of HostZoomMap to content instead of having every embedder do this.

chrome/browser/ui/gtk/browser_toolbar_gtk.cc

 // Copyright (c) 2012 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/browser_toolbar_gtk.h"
 
 #include <X11/XF86keysym.h>
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 
@@ skipping 216 matching lines @@
   g_signal_connect_after(wrench_box, "expose-event",
                          G_CALLBACK(OnWrenchMenuButtonExposeThunk), this);
   gtk_container_add(GTK_CONTAINER(wrench_box), wrench_button);
   gtk_box_pack_start(GTK_BOX(toolbar_), wrench_box, FALSE, FALSE, 4);
 
   wrench_menu_.reset(new MenuGtk(this, wrench_menu_model_.get()));
   // The bookmark menu model needs to be able to force the wrench menu to close.
   wrench_menu_model_->bookmark_sub_menu_model()->SetMenuGtk(wrench_menu_.get());
 
   registrar_.Add(this, content::NOTIFICATION_ZOOM_LEVEL_CHANGED,
-      content::Source<HostZoomMap>(profile->GetHostZoomMap()));
+      content::Source<HostZoomMap>(
+          HostZoomMap::GetForBrowserContext(profile));
 
   if (ShouldOnlyShowLocation()) {
     gtk_widget_show(event_box_);
     gtk_widget_show(alignment_);
     gtk_widget_show(toolbar_);
     gtk_widget_show_all(location_hbox_);
     gtk_widget_hide(reload_->widget());
   } else {
     gtk_widget_show_all(event_box_);
     if (actions_toolbar_->button_count() == 0)
@@ skipping 433 matching lines @@
   const SkBitmap* badge = theme_service_->GetBitmapNamed(resource_id);
   gfx::CanvasSkiaPaint canvas(expose, false);
   int x_offset = base::i18n::IsRTL() ? 0 : allocation.width - badge->width();
   int y_offset = 0;
   canvas.DrawBitmapInt(*badge,
                        allocation.x + x_offset,
                        allocation.y + y_offset);
 
   return FALSE;
 }