Remove logging.h from cc files that don't use it.

chrome/browser/gtk/custom_button.cc

 // 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.
 
 #include "chrome/browser/gtk/custom_button.h"
 
 #include "base/basictypes.h"
-#include "base/logging.h"
 #include "chrome/common/resource_bundle.h"
 #include "chrome/browser/gtk/nine_box.h"
 
 #include "grit/theme_resources.h"
 
 CustomDrawButton::CustomDrawButton(int normal_id,
     int active_id, int highlight_id, int depressed_id) {
   widget_ = gtk_button_new();
 
   // Load the button images from the resource bundle.
@@ skipping 114 matching lines @@
 
   // If we return FALSE from the function, the button paints itself.
   // If we return TRUE, no children are painted.
   // So we return TRUE and send the expose along directly to the child.
   gtk_container_propagate_expose(GTK_CONTAINER(widget),
                                  gtk_bin_get_child(GTK_BIN(widget)),
                                  e);
 
   return TRUE;  // Prevent normal painting.
 }