chromeos: Converts more tests to AshTestBase

ash/system/screen_security/screen_tray_item_unittest.cc

Index: ash/system/screen_security/screen_tray_item_unittest.cc
diff --git a/ash/system/screen_security/screen_tray_item_unittest.cc b/ash/system/screen_security/screen_tray_item_unittest.cc
index 5c7d9d2a743a97725ef411f7c1190be82758d8f5..122c478ea05b247ce5763aacfac2ef779e0370b0 100644
--- a/ash/system/screen_security/screen_tray_item_unittest.cc
+++ b/ash/system/screen_security/screen_tray_item_unittest.cc
@@ -10,7 +10,7 @@
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/tray_item_view.h"
-#include "ash/test/ash_test.h"
+#include "ash/test/ash_test_base.h"
 #include "base/callback.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ -36,7 +36,7 @@ void ClickViewCenter(views::View* view) {
       ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE));
 }
 
-class ScreenTrayItemTest : public AshTest {
+class ScreenTrayItemTest : public test::AshTestBase {
  public:
   ScreenTrayItemTest() : tray_item_(NULL), stop_callback_hit_count_(0) {}
   ~ScreenTrayItemTest() override {}
@@ -47,7 +47,7 @@ class ScreenTrayItemTest : public AshTest {
   int stop_callback_hit_count() const { return stop_callback_hit_count_; }
 
   void SetUp() override {
-    AshTest::SetUp();
+    AshTestBase::SetUp();
     TrayItemView::DisableAnimationsForTest();
   }
 
@@ -192,7 +192,7 @@ void TestSystemTrayInteraction(ScreenTrayItemTest* test) {
   EXPECT_FALSE(tray_item->tray_view()->visible());
 
   std::vector<SystemTrayItem*> tray_items =
-      AshTest::GetPrimarySystemTray()->GetTrayItems();
+      test::AshTestBase::GetPrimarySystemTray()->GetTrayItems();
   EXPECT_NE(std::find(tray_items.begin(), tray_items.end(), tray_item),
             tray_items.end());
 
@@ -200,16 +200,16 @@ void TestSystemTrayInteraction(ScreenTrayItemTest* test) {
   EXPECT_TRUE(tray_item->tray_view()->visible());
 
   // The default view should be created in a new bubble.
-  AshTest::GetPrimarySystemTray()->ShowDefaultView(BUBBLE_CREATE_NEW);
+  test::AshTestBase::GetPrimarySystemTray()->ShowDefaultView(BUBBLE_CREATE_NEW);
   EXPECT_TRUE(tray_item->default_view());
-  AshTest::GetPrimarySystemTray()->CloseSystemBubble();
+  test::AshTestBase::GetPrimarySystemTray()->CloseSystemBubble();
   EXPECT_FALSE(tray_item->default_view());
 
   test->StopSession();
   EXPECT_FALSE(tray_item->tray_view()->visible());
 
   // The default view should not be visible because session is stopped.
-  AshTest::GetPrimarySystemTray()->ShowDefaultView(BUBBLE_CREATE_NEW);
+  test::AshTestBase::GetPrimarySystemTray()->ShowDefaultView(BUBBLE_CREATE_NEW);
   EXPECT_FALSE(tray_item->default_view()->visible());
 }