Media gallery fixups for scoped_refptr<T> operator T* removal.

chrome/browser/media_galleries/fileapi/mtp_device_async_delegate.h

Index: chrome/browser/media_galleries/fileapi/mtp_device_async_delegate.h
diff --git a/chrome/browser/media_galleries/fileapi/mtp_device_async_delegate.h b/chrome/browser/media_galleries/fileapi/mtp_device_async_delegate.h
index bc897bbeb722844a29432d8fd77ca73ff2d90f61..abc15bfb7f6b2851cf2f9ec4ae0676e7addf7650 100644
--- a/chrome/browser/media_galleries/fileapi/mtp_device_async_delegate.h
+++ b/chrome/browser/media_galleries/fileapi/mtp_device_async_delegate.h
@@ -92,11 +92,12 @@ class MTPDeviceAsyncDelegate {
   // Reads up to |buf_len| bytes from |device_file_path| into |buf|. Invokes the
   // appropriate callback asynchronously when complete. Only valid when
   // IsStreaming() is true.
-  virtual void ReadBytes(
-      const base::FilePath& device_file_path,
-      net::IOBuffer* buf, int64 offset, int buf_len,
-      const ReadBytesSuccessCallback& success_callback,
-      const ErrorCallback& error_callback) = 0;
+  virtual void ReadBytes(const base::FilePath& device_file_path,
+                         const scoped_refptr<net::IOBuffer>& buf,
+                         int64 offset,
+                         int buf_len,
+                         const ReadBytesSuccessCallback& success_callback,
+                         const ErrorCallback& error_callback) = 0;
 
   // Called when the
   // (1) Browser application is in shutdown mode (or)