Making PageSerializer operate on single frames only.

third_party/WebKit/Source/web/tests/MHTMLTest.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 122 matching lines @@
         addResource("http://www.test.com/red_background.png", "image/png", "red_background.png");
         addResource("http://www.test.com/orange_background.png", "image/png", "orange_background.png");
         addResource("http://www.test.com/yellow_background.png", "image/png", "yellow_background.png");
         addResource("http://www.test.com/green_background.png", "image/png", "green_background.png");
         addResource("http://www.test.com/blue_background.png", "image/png", "blue_background.png");
         addResource("http://www.test.com/purple_background.png", "image/png", "purple_background.png");
         addResource("http://www.test.com/ul-dot.png", "image/png", "ul-dot.png");
         addResource("http://www.test.com/ol-dot.png", "image/png", "ol-dot.png");
     }
 
+    static PassRefPtr<SharedBuffer> generateMHTMLData(
+        const Vector<SerializedResource>& resources,
+        MHTMLArchive::EncodingPolicy encodingPolicy,
+        const String& title, const String& mimeType)
+    {
+        String boundary = MHTMLArchive::generateMHTMLBoundary();
+
+        RefPtr<SharedBuffer> mhtmlData = SharedBuffer::create();
+        MHTMLArchive::generateMHTMLHeader(boundary, title, mimeType, *mhtmlData);
+        for (const auto& resource : resources) {
+            MHTMLArchive::generateMHTMLPart(
+                boundary, encodingPolicy, resource, *mhtmlData);
+        }
+        MHTMLArchive::generateMHTMLFooter(boundary, *mhtmlData);
+        return mhtmlData.release();
+    }
+
     PassRefPtr<SharedBuffer> serialize(const char *title, const char *mime,  MHTMLArchive::EncodingPolicy encodingPolicy)
     {
-        return MHTMLArchive::generateMHTMLData(m_resources, encodingPolicy, title, mime);
+        return generateMHTMLData(m_resources, encodingPolicy, title, mime);
     }
 
 private:
     PassRefPtr<SharedBuffer> readFile(const char* fileName)
     {
         String filePath = m_filePath + fileName;
         return Platform::current()->unitTestSupport()->readFromFile(filePath);
     }
 
     String m_filePath;
@@ skipping 52 matching lines @@
             ASSERT_TRUE(expectedEncoding);
             EXPECT_NE(line.find(expectedEncoding), std::string::npos);
             expectedEncoding = 0;
             sectionCheckedCount++;
         }
     }
     EXPECT_EQ(12, sectionCheckedCount);
 }
 
 } // namespace blink