Remove base::ScopedPtrHashMap from ozone.

ui/ozone/platform/drm/gpu/hardware_display_controller.h

Index: ui/ozone/platform/drm/gpu/hardware_display_controller.h
diff --git a/ui/ozone/platform/drm/gpu/hardware_display_controller.h b/ui/ozone/platform/drm/gpu/hardware_display_controller.h
index 3738cf27d4459d4026e10f755c1b3ccc31d4cf6a..bfb34739865588a6782ba0edcb081cebcd4eecbe 100644
--- a/ui/ozone/platform/drm/gpu/hardware_display_controller.h
+++ b/ui/ozone/platform/drm/gpu/hardware_display_controller.h
@@ -12,10 +12,10 @@
 #include <deque>
 #include <map>
 #include <memory>
+#include <unordered_map>
 #include <vector>
 
 #include "base/callback.h"
-#include "base/containers/scoped_ptr_hash_map.h"
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "ui/gfx/swap_result.h"
@@ -160,7 +160,7 @@ class HardwareDisplayController {
                               bool test_only,
                               const PageFlipCallback& callback);
 
-  base::ScopedPtrHashMap<DrmDevice*, std::unique_ptr<HardwareDisplayPlaneList>>
+  std::unordered_map<DrmDevice*, std::unique_ptr<HardwareDisplayPlaneList>>
       owned_hardware_planes_;
 
   // Stores the CRTC configuration. This is used to identify monitors and