Add custom default theme support and create a managed user default theme.

chrome/browser/themes/custom_theme_supplier.cc

+// Copyright 2013 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/themes/custom_theme_supplier.h"
+
+#include "base/memory/ref_counted_memory.h"
+#include "ui/gfx/color_utils.h"
+#include "ui/gfx/image/image.h"
+
+CustomThemeSupplier::CustomThemeSupplier(ThemeType theme_type)
+    : theme_type_(theme_type) {}
+
+CustomThemeSupplier::~CustomThemeSupplier() {}
+
+void CustomThemeSupplier::StartUsingTheme() {}
+
+void CustomThemeSupplier::StopUsingTheme() {}
+
+bool CustomThemeSupplier::GetTint(int id, color_utils::HSL* hsl) const {
+  return false;
+}
+
+bool CustomThemeSupplier::GetColor(int id, SkColor* color) const {
+  return false;
+}
+
+bool CustomThemeSupplier::GetDisplayProperty(int id, int* result) const {
+  return false;
+}
+
+gfx::Image CustomThemeSupplier::GetImageNamed(int id) {
+  return gfx::Image();
+}
+
+bool CustomThemeSupplier::HasCustomImage(int id) const {
+  return false;
+}
+
+base::RefCountedMemory* CustomThemeSupplier::GetRawData(

[pkotwicz, 2013/07/22 20:17:28]

Nit: Move GetRawData() just below GetImageNamed() to match order in
BrowserThemePack.

[Adrian Kuegel, 2013/07/23 08:13:29]

Done.

+    int idr_id,
+    ui::ScaleFactor scale_factor) const {
+  return NULL;
+}