Remove security_origin member from content::Stream.

content/browser/streams/stream.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_STREAMS_STREAM_H_
 #define CONTENT_BROWSER_STREAMS_STREAM_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 20 matching lines @@
 // reader to consume part of the stream, then pass it along to another client
 // to continue processing the stream.
 class CONTENT_EXPORT Stream : public base::RefCountedThreadSafe<Stream> {
  public:
   enum StreamState {
     STREAM_HAS_DATA,
     STREAM_COMPLETE,
     STREAM_EMPTY,
   };
 
-  // Creates a stream useable from the |security_origin|.
+  // Creates a stream.
+  //
+  // Security origin of Streams is checked in Blink (See BlobRegistry,
+  // BlobURL and SecurityOrigin to understand how it works). There's no security
+  // origin check in Chromium side for now.
   Stream(StreamRegistry* registry,
          StreamWriteObserver* write_observer,
-         const GURL& security_origin,
          const GURL& url);
 
   // Sets the reader of this stream. Returns true on success, or false if there
   // is already a reader.
   bool SetReadObserver(StreamReadObserver* observer);
 
   // Removes the read observer.  |observer| must be the current observer.
   void RemoveReadObserver(StreamReadObserver* observer);
 
   // Removes the write observer.  |observer| must be the current observer.
@@ skipping 13 matching lines @@
 
   scoped_ptr<StreamHandle> CreateHandle(const GURL& original_url,
                                         const std::string& mime_type);
   void CloseHandle();
 
   // Indicates whether there is space in the buffer to add more data.
   bool can_add_data() const { return can_add_data_; }
 
   const GURL& url() const { return url_; }
 
-  const GURL& security_origin() const { return security_origin_; }
-
  private:
   friend class base::RefCountedThreadSafe<Stream>;
 
   virtual ~Stream();
 
   void OnSpaceAvailable();
   void OnDataAvailable();
 
   size_t data_bytes_read_;
   bool can_add_data_;
 
-  GURL security_origin_;
   GURL url_;
 
   scoped_refptr<net::IOBuffer> data_;
   size_t data_length_;
 
   scoped_ptr<ByteStreamWriter> writer_;
   scoped_ptr<ByteStreamReader> reader_;
 
   StreamRegistry* registry_;
   StreamReadObserver* read_observer_;
   StreamWriteObserver* write_observer_;
 
   StreamHandleImpl* stream_handle_;
 
   base::WeakPtrFactory<Stream> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(Stream);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_STREAMS_STREAM_H_