Initialize MaterialDesignController in NativeThemeMacTest

ui/native_theme/native_theme_mac_unittest.cc

Index: ui/native_theme/native_theme_mac_unittest.cc
diff --git a/ui/native_theme/native_theme_mac_unittest.cc b/ui/native_theme/native_theme_mac_unittest.cc
index c7c92d6d861b437a9e013f65d580bca6ee9f49e4..cd8d49bcf9f7485193c7a2a171eab97780c5ead1 100644
--- a/ui/native_theme/native_theme_mac_unittest.cc
+++ b/ui/native_theme/native_theme_mac_unittest.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "ui/base/material_design/material_design_controller.h"
 #include "ui/native_theme/native_theme_mac.h"
 
 #include "base/mac/mac_util.h"
@@ -9,10 +10,17 @@
 
 namespace ui {
 
+class NativeThemeMacTest : public testing::Test {
+ public:
+  static void SetUpTestCase() {
+    MaterialDesignController::Initialize();
+  }
+};
+
 // Test to ensure any system colors that are looked up by name exist on all Mac
 // platforms Chrome supports, and that their colorspace and component count is
 // sane.
-TEST(NativeThemeMacTest, SystemColorsExist) {
+TEST_F(NativeThemeMacTest, SystemColorsExist) {
   NativeTheme* native_theme = NativeThemeMac::instance();
   ASSERT_TRUE(native_theme);
   for (int i = 0; i < NativeTheme::kColorId_NumColors; ++i) {
@@ -27,7 +35,7 @@ TEST(NativeThemeMacTest, SystemColorsExist) {
 
 // Spot-check some system colours that can't be changed through System
 // Preferences.
-TEST(NativeThemeMacTest, SystemColorSpotChecks) {
+TEST_F(NativeThemeMacTest, SystemColorSpotChecks) {
   NativeTheme* native_theme = NativeThemeMac::instance();
   const SkColor kWindowColorCatsMavericks = SkColorSetARGB(255, 232, 232, 232);
   const SkColor kWindowColorYosemite = SkColorSetARGB(255, 236, 236, 236);