ozone: Remove primary plane optimization.

ui/ozone/platform/drm/gpu/hardware_display_controller_unittest.cc

Index: ui/ozone/platform/drm/gpu/hardware_display_controller_unittest.cc
diff --git a/ui/ozone/platform/drm/gpu/hardware_display_controller_unittest.cc b/ui/ozone/platform/drm/gpu/hardware_display_controller_unittest.cc
index 48017cd503cb3b53eecee74d172390c89424a756..9882517ba067e12913a0049b143b6520196e0d0d 100644
--- a/ui/ozone/platform/drm/gpu/hardware_display_controller_unittest.cc
+++ b/ui/ozone/platform/drm/gpu/hardware_display_controller_unittest.cc
@@ -204,31 +204,6 @@ TEST_F(HardwareDisplayControllerTest, CheckOverlayTestMode) {
   EXPECT_EQ(2, drm_->get_overlay_flip_call_count());
 }
 
-TEST_F(HardwareDisplayControllerTest, CheckOverlayFullScreenMode) {
-  ui::OverlayPlane plane1(scoped_refptr<ui::ScanoutBuffer>(
-      new ui::MockScanoutBuffer(kDefaultModeSize)));
-  ui::OverlayPlane plane2(scoped_refptr<ui::ScanoutBuffer>(
-                              new ui::MockScanoutBuffer(kDefaultModeSize)),
-                          1, gfx::OVERLAY_TRANSFORM_NONE,
-                          gfx::Rect(kDefaultModeSize),
-                          gfx::RectF(kDefaultModeSizeF));
-
-  EXPECT_TRUE(controller_->Modeset(plane1, kDefaultMode));
-
-  std::vector<ui::OverlayPlane> planes;
-  planes.push_back(plane1);
-  planes.push_back(plane2);
-
-  controller_->SchedulePageFlip(
-      planes, base::Bind(&HardwareDisplayControllerTest::PageFlipCallback,
-                         base::Unretained(this)));
-  drm_->RunCallbacks();
-  EXPECT_EQ(gfx::SwapResult::SWAP_ACK, last_swap_result_);
-  EXPECT_EQ(1, page_flips_);
-  EXPECT_EQ(1, drm_->get_page_flip_call_count());
-  EXPECT_EQ(0, drm_->get_overlay_flip_call_count());
-}
-
 TEST_F(HardwareDisplayControllerTest, RejectUnderlays) {
   ui::OverlayPlane plane1(scoped_refptr<ui::ScanoutBuffer>(
       new ui::MockScanoutBuffer(kDefaultModeSize)));