Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/app/cast_main_delegate.h

Index: chromecast/app/cast_main_delegate.h
diff --git a/chromecast/app/cast_main_delegate.h b/chromecast/app/cast_main_delegate.h
index 1e7609feaa60997fcb9e943e37b225f904eed1e5..12f0eae567ced2227323decce87d2b8cb47320a1 100644
--- a/chromecast/app/cast_main_delegate.h
+++ b/chromecast/app/cast_main_delegate.h
@@ -5,8 +5,9 @@
 #ifndef CHROMECAST_APP_CAST_MAIN_DELEGATE_H_
 #define CHROMECAST_APP_CAST_MAIN_DELEGATE_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "build/build_config.h"
 #include "chromecast/common/cast_content_client.h"
 #include "content/public/app/content_main_delegate.h"
@@ -46,14 +47,14 @@ class CastMainDelegate : public content::ContentMainDelegate {
  private:
   void InitializeResourceBundle();
 
-  scoped_ptr<CastContentBrowserClient> browser_client_;
-  scoped_ptr<CastContentRendererClient> renderer_client_;
-  scoped_ptr<CastContentUtilityClient> utility_client_;
-  scoped_ptr<CastResourceDelegate> resource_delegate_;
+  std::unique_ptr<CastContentBrowserClient> browser_client_;
+  std::unique_ptr<CastContentRendererClient> renderer_client_;
+  std::unique_ptr<CastContentUtilityClient> utility_client_;
+  std::unique_ptr<CastResourceDelegate> resource_delegate_;
   CastContentClient content_client_;
 
 #if defined(OS_ANDROID)
-  scoped_ptr<content::BrowserMainRunner> browser_runner_;
+  std::unique_ptr<content::BrowserMainRunner> browser_runner_;
 #endif  // defined(OS_ANDROID)
 
   DISALLOW_COPY_AND_ASSIGN(CastMainDelegate);