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

content/browser/device_sensors/ambient_light_mac.h

Index: content/browser/device_sensors/ambient_light_mac.h
diff --git a/content/browser/device_sensors/ambient_light_mac.h b/content/browser/device_sensors/ambient_light_mac.h
index 36eff8b76f1437cb4a42d700f4d7acc1294c25e2..6d4af75ce80c20c828a86d0708ec7799cb3a09b2 100644
--- a/content/browser/device_sensors/ambient_light_mac.h
+++ b/content/browser/device_sensors/ambient_light_mac.h
@@ -8,8 +8,9 @@
 #include <IOKit/IOKitLib.h>
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 
 namespace content {
 
@@ -17,7 +18,7 @@ namespace content {
 class AmbientLightSensor {
  public:
   // Create AmbientLightSensor object, return NULL if no valid is sensor found.
-  static scoped_ptr<AmbientLightSensor> Create();
+  static std::unique_ptr<AmbientLightSensor> Create();
 
   ~AmbientLightSensor();