Fix chrome upload with content uri

webkit/browser/blob/file_stream_reader.h

Index: webkit/browser/blob/file_stream_reader.h
diff --git a/webkit/browser/blob/file_stream_reader.h b/webkit/browser/blob/file_stream_reader.h
index d60dfdbd91cfcf871d7cd49f23830576e2ff4a0b..c8ec0a2e1a96d5f1738e13e337c130c786c66644 100644
--- a/webkit/browser/blob/file_stream_reader.h
+++ b/webkit/browser/blob/file_stream_reader.h
@@ -25,6 +25,10 @@ class FileSystemContext;
 class FileSystemURL;
 }
 
+#if defined(OS_ANDROID)
+class GURL;
+#endif
+
 namespace webkit_blob {
 
 // A generic interface for reading a file-like object.
@@ -56,6 +60,14 @@ class FileStreamReader {
                               int64 initial_offset,
                               const base::Time& expected_modification_time);
 
+#if defined(OS_ANDROID)
+  // Creates a new reader for a content URL |url| form |initial_offset|.
+  WEBKIT_STORAGE_BROWSER_EXPORT static FileStreamReader*
+      CreateForContentUrl(base::TaskRunner* task_runner,
+                          const GURL& content_url,
+                          int64 initial_offset);
+#endif
+
   // It is valid to delete the reader at any time.  If the stream is deleted
   // while it has a pending read, its callback will not be called.
   virtual ~FileStreamReader() {}