EDK: More scoped_ptr -> std::unique_ptr conversions.

mojo/edk/system/shared_buffer_dispatcher.cc

Index: mojo/edk/system/shared_buffer_dispatcher.cc
diff --git a/mojo/edk/system/shared_buffer_dispatcher.cc b/mojo/edk/system/shared_buffer_dispatcher.cc
index caf8e0b64bfb313975c6cdef71a6a4d3e283ca34..d049626329ce129dc22c126e34bc5d79c2ef58f8 100644
--- a/mojo/edk/system/shared_buffer_dispatcher.cc
+++ b/mojo/edk/system/shared_buffer_dispatcher.cc
@@ -7,7 +7,6 @@
 #include <limits>
 
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "mojo/edk/embedder/platform_support.h"
 #include "mojo/edk/system/channel.h"
 #include "mojo/edk/system/configuration.h"
@@ -208,7 +207,7 @@ MojoResult SharedBufferDispatcher::MapBufferImplNoLock(
     uint64_t offset,
     uint64_t num_bytes,
     MojoMapBufferFlags flags,
-    scoped_ptr<embedder::PlatformSharedBufferMapping>* mapping) {
+    std::unique_ptr<embedder::PlatformSharedBufferMapping>* mapping) {
   mutex().AssertHeld();
   DCHECK(shared_buffer_);