Move skia to DEPS, and put it in third_party.

chrome/common/gtk_util.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/common/gtk_util.h"
 
 #include <gtk/gtk.h>
 
 #include "base/linux_util.h"
-#include "skia/include/SkBitmap.h"
+#include "third_party/skia/include/core/SkBitmap.h"
 
 namespace {
 
 // Callback used in RemoveAllChildren.
 void RemoveWidget(GtkWidget* widget, gpointer container) {
   gtk_container_remove(GTK_CONTAINER(container), widget);
 }
 
 void FreePixels(guchar* pixels, gpointer data) {
   free(data);
@@ skipping 51 matching lines @@
   gtk_container_add(GTK_CONTAINER(alignment), child);
   gtk_container_add(GTK_CONTAINER(ebox), alignment);
   return ebox;
 }
 
 void RemoveAllChildren(GtkWidget* container) {
   gtk_container_foreach(GTK_CONTAINER(container), RemoveWidget, container);
 }
 
 }  // namespace gfx