Convert remaining scoped_ptr -> std::unique_ptr in //mojo/edk (minus js).

mojo/edk/embedder/embedder.h

Index: mojo/edk/embedder/embedder.h
diff --git a/mojo/edk/embedder/embedder.h b/mojo/edk/embedder/embedder.h
index 5e1d984516797aefce0a214184313246582133c2..b986d23b30447a6defdd7ffcfdbe5d7f02aec63b 100644
--- a/mojo/edk/embedder/embedder.h
+++ b/mojo/edk/embedder/embedder.h
@@ -5,11 +5,11 @@
 #ifndef MOJO_EDK_EMBEDDER_EMBEDDER_H_
 #define MOJO_EDK_EMBEDDER_EMBEDDER_H_
 
+#include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/task_runner.h"
 #include "mojo/edk/embedder/channel_info_forward.h"
 #include "mojo/edk/embedder/process_type.h"
@@ -37,7 +37,8 @@ MOJO_SYSTEM_IMPL_EXPORT Configuration* GetConfiguration();
 
 // Must be called first, or just after setting configuration parameters, to
 // initialize the (global, singleton) system.
-MOJO_SYSTEM_IMPL_EXPORT void Init(scoped_ptr<PlatformSupport> platform_support);
+MOJO_SYSTEM_IMPL_EXPORT void Init(
+    std::unique_ptr<PlatformSupport> platform_support);
 
 // Basic functions -------------------------------------------------------------