Support sending BlobData to browser process. Also support sending UploadData...

net/base/upload_data.h

 // Copyright (c) 2010 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 NET_BASE_UPLOAD_DATA_H_
 #define NET_BASE_UPLOAD_DATA_H_
 #pragma once
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/logging.h"
 #include "base/ref_counted.h"
+#include "googleurl/src/gurl.h"
 #include "net/base/file_stream.h"
 #include "base/time.h"
 
 namespace net {
 
 class UploadData : public base::RefCounted<UploadData> {
  public:
   UploadData() : identifier_(0) {}
 
   enum Type {
     TYPE_BYTES,
-    TYPE_FILE
+    TYPE_FILE,
+    TYPE_BLOB
   };
 
   class Element {
    public:
     Element() : type_(TYPE_BYTES), file_range_offset_(0),
                 file_range_length_(kuint64max),
                 override_content_length_(false),
                 content_length_computed_(false),
                 file_stream_(NULL) {
     }
 
     ~Element() {
       // In the common case |file__stream_| will be null.
       delete file_stream_;
     }
 
     Type type() const { return type_; }
     const std::vector<char>& bytes() const { return bytes_; }
     const FilePath& file_path() const { return file_path_; }
     uint64 file_range_offset() const { return file_range_offset_; }
     uint64 file_range_length() const { return file_range_length_; }
     // If NULL time is returned, we do not do the check.
     const base::Time& expected_file_modification_time() const {
       return expected_file_modification_time_;
     }
+    const GURL& blob_url() const { return blob_url_; }
 
     void SetToBytes(const char* bytes, int bytes_len) {
       type_ = TYPE_BYTES;
       bytes_.assign(bytes, bytes + bytes_len);
     }
 
     void SetToFilePath(const FilePath& path) {
       SetToFilePathRange(path, 0, kuint64max, base::Time());
     }
 
     // If expected_modification_time is NULL, we do not check for the file
     // change. Also note that the granularity for comparison is time_t, not
     // the full precision.
     void SetToFilePathRange(const FilePath& path,
                             uint64 offset, uint64 length,
                             const base::Time& expected_modification_time) {
       type_ = TYPE_FILE;
       file_path_ = path;
       file_range_offset_ = offset;
       file_range_length_ = length;
       expected_file_modification_time_ = expected_modification_time;
     }
 
+    // TODO(jianli): UploadData should not contain any blob reference. We need
+    // to define another structure to represent WebKit::WebHTTPBody.
+    void SetToBlobUrl(const GURL& blob_url) {
+      type_ = TYPE_BLOB;
+      blob_url_ = blob_url;
+    }
+
     // Returns the byte-length of the element.  For files that do not exist, 0
     // is returned.  This is done for consistency with Mozilla.
     // Once called, this function will always return the same value.
     uint64 GetContentLength();
 
     // Returns a FileStream opened for reading for this element, positioned at
     // |file_range_offset_|.  The caller gets ownership and is responsible
     // for cleaning up the FileStream. Returns NULL if this element is not of
     // type TYPE_FILE or if the file is not openable.
     FileStream* NewFileStreamForReading();
 
    private:
     // Allows tests to override the result of GetContentLength.
     void SetContentLength(uint64 content_length) {
       override_content_length_ = true;
       content_length_ = content_length;
     }
 
     Type type_;
     std::vector<char> bytes_;
     FilePath file_path_;
     uint64 file_range_offset_;
     uint64 file_range_length_;
     base::Time expected_file_modification_time_;
+    GURL blob_url_;
     bool override_content_length_;
     bool content_length_computed_;
     uint64 content_length_;
     FileStream* file_stream_;
 
     FRIEND_TEST_ALL_PREFIXES(UploadDataStreamTest, FileSmallerThanLength);
     FRIEND_TEST_ALL_PREFIXES(HttpNetworkTransactionTest,
                              UploadFileSmallerThanLength);
   };
 
@@ skipping 10 matching lines @@
   }
 
   void AppendFileRange(const FilePath& file_path,
                        uint64 offset, uint64 length,
                        const base::Time& expected_modification_time) {
     elements_.push_back(Element());
     elements_.back().SetToFilePathRange(file_path, offset, length,
                                         expected_modification_time);
   }
 
+  void AppendBlob(const GURL& blob_url) {
+    elements_.push_back(Element());
+    elements_.back().SetToBlobUrl(blob_url);
+  }
+
   // Returns the total size in bytes of the data to upload.
   uint64 GetContentLength();
 
   std::vector<Element>* elements() {
     return &elements_;
   }
 
   void set_elements(const std::vector<Element>& elements) {
     elements_ = elements;
   }
@@ skipping 13 matching lines @@
 
   ~UploadData() {}
 
   std::vector<Element> elements_;
   int64 identifier_;
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_UPLOAD_DATA_H_