linux_aura: Enable HIDPI support

ash/display/display_change_observer_chromeos_unittest.cc

Index: ash/display/display_change_observer_chromeos_unittest.cc
diff --git a/ash/display/display_change_observer_chromeos_unittest.cc b/ash/display/display_change_observer_chromeos_unittest.cc
index a437aec64c53dc409c0039ae43a8e09761030e1e..978098dbfd71b79852f38986e83d8f3bf978d11c 100644
--- a/ash/display/display_change_observer_chromeos_unittest.cc
+++ b/ash/display/display_change_observer_chromeos_unittest.cc
@@ -16,18 +16,6 @@ typedef testing::Test DisplayChangeObserverTest;
 namespace ash {
 namespace internal {
 
-TEST_F(DisplayChangeObserverTest, TestBlackListedDisplay) {
-  EXPECT_TRUE(DisplayChangeObserver::ShouldIgnoreSize(10, 10));
-  EXPECT_TRUE(DisplayChangeObserver::ShouldIgnoreSize(40, 30));
-  EXPECT_TRUE(DisplayChangeObserver::ShouldIgnoreSize(50, 40));
-  EXPECT_TRUE(DisplayChangeObserver::ShouldIgnoreSize(160, 90));
-  EXPECT_TRUE(DisplayChangeObserver::ShouldIgnoreSize(160, 100));
-
-  EXPECT_FALSE(DisplayChangeObserver::ShouldIgnoreSize(50, 60));
-  EXPECT_FALSE(DisplayChangeObserver::ShouldIgnoreSize(100, 70));
-  EXPECT_FALSE(DisplayChangeObserver::ShouldIgnoreSize(272, 181));
-}
-
 TEST_F(DisplayChangeObserverTest, GetResolutionList) {
   OutputConfigurator::OutputSnapshot output;
   output.mode_infos[11] = OutputConfigurator::ModeInfo(1920, 1200, false, 60);