Disable scalling of InfoBar icon

chrome/browser/ui/gtk/infobars/infobar_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/infobars/infobar_gtk.h"
 
 #include <gtk/gtk.h>
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/platform_util.h"
@@ skipping 45 matching lines @@
                    G_CALLBACK(OnBackgroundExposeThunk), this);
   gtk_container_add(GTK_CONTAINER(padding), hbox_);
   gtk_container_add(GTK_CONTAINER(bg_box_), padding);
   gtk_widget_set_size_request(bg_box_, -1, kInfoBarHeight);
 
   // Add the icon on the left, if any.
   gfx::Image* icon = delegate->GetIcon();
   if (icon) {
     GtkWidget* image = gtk_image_new_from_pixbuf(*icon);
 
+    gtk_widget_set_size_request(
+        image, GetInfoBarIconSizePixels(), GetInfoBarIconSizePixels());
     gtk_misc_set_alignment(GTK_MISC(image), 0.5, 0.5);
 
     gtk_box_pack_start(GTK_BOX(hbox_), image, FALSE, FALSE, 0);
   }
 
   close_button_.reset(CustomDrawButton::CloseButton(NULL));
   gtk_util::CenterWidgetInHBox(hbox_, close_button_->widget(), true, 0);
   g_signal_connect(close_button_->widget(), "clicked",
                    G_CALLBACK(OnCloseButtonThunk), this);
 
@@ skipping 188 matching lines @@
       BrowserWindowGtk::GetBrowserWindowForNativeWindow(parent);
   int x = browser_window ?
       browser_window->GetXPositionOfLocationIcon(sender) : 0;
 
   size_t size = InfoBarArrowModel::kDefaultArrowSize;
   gfx::Rect arrow_bounds(x - size, y - size, 2 * size, size);
   arrow_model_.Paint(sender, event, arrow_bounds, border_color);
 
   return FALSE;
 }