Convert //content/browser from scoped_ptr to std::unique_ptr

content/browser/vr/android/cardboard/cardboard_vr_device_provider.h

Index: content/browser/vr/android/cardboard/cardboard_vr_device_provider.h
diff --git a/content/browser/vr/android/cardboard/cardboard_vr_device_provider.h b/content/browser/vr/android/cardboard/cardboard_vr_device_provider.h
index b041316bc8c7e3d5ec636d2317025e496d675674..d8133f4ce9acccb5528d2931a66b7d4230d5e097 100644
--- a/content/browser/vr/android/cardboard/cardboard_vr_device_provider.h
+++ b/content/browser/vr/android/cardboard/cardboard_vr_device_provider.h
@@ -6,9 +6,9 @@
 #define CONTENT_BROWSER_VR_CARDBOARD_VR_DEVICE_PROVIDER_H
 
 #include <map>
+#include <memory>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "content/browser/vr/vr_device.h"
 #include "content/browser/vr/vr_device_provider.h"
 
@@ -23,7 +23,7 @@ class CardboardVRDeviceProvider : public VRDeviceProvider {
   void Initialize() override;
 
  private:
-  scoped_ptr<VRDevice> cardboard_device_;
+  std::unique_ptr<VRDevice> cardboard_device_;
 
   DISALLOW_COPY_AND_ASSIGN(CardboardVRDeviceProvider);
 };