Convert //ppapi to use std::unique_ptr

ppapi/proxy/video_decoder_resource.h

Index: ppapi/proxy/video_decoder_resource.h
diff --git a/ppapi/proxy/video_decoder_resource.h b/ppapi/proxy/video_decoder_resource.h
index 8f66e4a7dfa76a67503fa05cb5865c81de22687d..f8ba17579bd56c07b3fd81b9e43c747afcb3530c 100644
--- a/ppapi/proxy/video_decoder_resource.h
+++ b/ppapi/proxy/video_decoder_resource.h
@@ -7,12 +7,12 @@
 
 #include <stdint.h>
 
+#include <memory>
 #include <queue>
 
 #include "base/containers/hash_tables.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "ppapi/proxy/connection.h"
 #include "ppapi/proxy/plugin_resource.h"
@@ -85,12 +85,12 @@ class PPAPI_PROXY_EXPORT VideoDecoderResource
  private:
   // Struct to hold a shared memory buffer.
   struct ShmBuffer {
-    ShmBuffer(scoped_ptr<base::SharedMemory> shm,
+    ShmBuffer(std::unique_ptr<base::SharedMemory> shm,
               uint32_t size,
               uint32_t shm_id);
     ~ShmBuffer();
 
-    const scoped_ptr<base::SharedMemory> shm;
+    const std::unique_ptr<base::SharedMemory> shm;
     void* addr;
     // Index into shm_buffers_ vector, used as an id. This should map 1:1 to
     // the index on the host side of the proxy.