Convert //ppapi to use std::unique_ptr

ppapi/proxy/video_decoder_resource.cc

Index: ppapi/proxy/video_decoder_resource.cc
diff --git a/ppapi/proxy/video_decoder_resource.cc b/ppapi/proxy/video_decoder_resource.cc
index 1519d1ae6531bb3af7ad5640c51950fbc58bb544..cb55764bff4360e6a104243be87344acdbaaea78 100644
--- a/ppapi/proxy/video_decoder_resource.cc
+++ b/ppapi/proxy/video_decoder_resource.cc
@@ -32,7 +32,7 @@ namespace ppapi {
 namespace proxy {
 
 VideoDecoderResource::ShmBuffer::ShmBuffer(
-    scoped_ptr<base::SharedMemory> shm_ptr,
+    std::unique_ptr<base::SharedMemory> shm_ptr,
     uint32_t size,
     uint32_t shm_id)
     : shm(std::move(shm_ptr)), addr(NULL), shm_id(shm_id) {
@@ -230,9 +230,9 @@ int32_t VideoDecoderResource::Decode(uint32_t decode_id,
     base::SharedMemoryHandle shm_handle = base::SharedMemory::NULLHandle();
     if (!reply_params.TakeSharedMemoryHandleAtIndex(0, &shm_handle))
       return PP_ERROR_NOMEMORY;
-    scoped_ptr<base::SharedMemory> shm(
+    std::unique_ptr<base::SharedMemory> shm(
         new base::SharedMemory(shm_handle, false /* read_only */));
-    scoped_ptr<ShmBuffer> shm_buffer(
+    std::unique_ptr<ShmBuffer> shm_buffer(
         new ShmBuffer(std::move(shm), shm_size, shm_id));
     if (!shm_buffer->addr)
       return PP_ERROR_NOMEMORY;