Avoid having every frame of a multipart response create a

webkit/glue/multipart_response_delegate_unittest.cc

 // Copyright (c) 2006-2008 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.
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebString.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURLLoaderClient.h"
@@ skipping 585 matching lines @@
   content_range_lower_bound = 0;
   content_range_upper_bound = 0;
 
   result = MultipartResponseDelegate::ReadContentRanges(
       response4, &content_range_lower_bound,
       &content_range_upper_bound);
 
   EXPECT_EQ(result, false);
 }
 
+TEST(MultipartResponseTest, MultipartPayloadSet) {
+  WebURLResponse response;
+  response.initialize();
+  response.setMIMEType(WebString::fromUTF8("multipart/x-mixed-replace"));
+  MockWebURLLoaderClient client;
+  MultipartResponseDelegate delegate(&client, NULL, response, "bound");
+
+  string data(
+      "--bound\n"
+      "Content-type: text/plain\n\n"
+      "response data\n"
+      "--bound\n");
+  delegate.OnReceivedData(data.c_str(), static_cast<int>(data.length()));
+  EXPECT_EQ(1,
+            client.received_response_);
+  EXPECT_EQ(string("response data\n"),
+            client.data_);
+  EXPECT_EQ(false, client.response_.isMultipartPayload());
+
+  string data2(
+      "Content-type: text/plain\n\n"
+      "response data2\n"
+      "--bound\n");
+  delegate.OnReceivedData(data2.c_str(), static_cast<int>(data2.length()));
+  EXPECT_EQ(2,
+            client.received_response_);
+  EXPECT_EQ(string("response data2\n"),
+            client.data_);
+  EXPECT_EQ(true, client.response_.isMultipartPayload());
+}
+
 }  // namespace