Convert //chrome/browser/extensions from scoped_ptr to std::unique_ptr

chrome/browser/extensions/blob_reader.h

Index: chrome/browser/extensions/blob_reader.h
diff --git a/chrome/browser/extensions/blob_reader.h b/chrome/browser/extensions/blob_reader.h
index 1cf464b86924ddb2d957d20deb963e34d7064e39..4c0076a9c19de0f38d53e37a8c7183cfdb22d088 100644
--- a/chrome/browser/extensions/blob_reader.h
+++ b/chrome/browser/extensions/blob_reader.h
@@ -7,11 +7,11 @@
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "net/base/io_buffer.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request.h"
@@ -28,8 +28,9 @@ class BlobReader : public net::URLFetcherDelegate {
   // |blob_data| contains the portion of the Blob requested. |blob_total_size|
   // is the total size of the Blob, and may be larger than |blob_data->size()|.
   // |blob_total_size| is -1 if it cannot be determined.
-  typedef base::Callback<void(scoped_ptr<std::string> blob_data,
-                              int64_t blob_total_size)> BlobReadCallback;
+  typedef base::Callback<void(std::unique_ptr<std::string> blob_data,
+                              int64_t blob_total_size)>
+      BlobReadCallback;
 
   BlobReader(Profile* profile,
              const std::string& blob_uuid,
@@ -45,7 +46,7 @@ class BlobReader : public net::URLFetcherDelegate {
   void OnURLFetchComplete(const net::URLFetcher* source) override;
 
   BlobReadCallback callback_;
-  scoped_ptr<net::URLFetcher> fetcher_;
+  std::unique_ptr<net::URLFetcher> fetcher_;
 
   DISALLOW_COPY_AND_ASSIGN(BlobReader);
 };