Make ASAN happy in MHTMLTest.TestMHTMLEncoding

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 167 matching lines @@
     SecurityOrigin* origin = document->securityOrigin();
     EXPECT_STRNE("localhost", origin->domain().ascii().data());
 }
 
 TEST_F(MHTMLTest, TestMHTMLEncoding)
 {
     addTestResources();
     RefPtr<SharedBuffer> data  = serialize("Test Serialization", "text/html", MHTMLArchive::UseDefaultEncoding);
 
     // Read the MHTML data line per line and do some pseudo-parsing to make sure the right encoding is used for the different sections.
-    LineReader lineReader(std::string(data->data()));
+    LineReader lineReader(std::string(data->data(), data->size()));
     int sectionCheckedCount = 0;
     const char* expectedEncoding = 0;
     std::string line;
     while (lineReader.getNextLine(&line)) {
         if (line.compare(0, 13, "Content-Type:") == 0) {
             ASSERT_FALSE(expectedEncoding);
             if (line.find("multipart/related;") != std::string::npos) {
                 // Skip this one, it's part of the MHTML header.
                 continue;
             }
             if (line.find("text/") != std::string::npos)
                 expectedEncoding = "quoted-printable";
             else if (line.find("image/") != std::string::npos)
                 expectedEncoding = "base64";
             else
                 FAIL() << "Unexpected Content-Type: " << line;
             continue;
         }
         if (line.compare(0, 26, "Content-Transfer-Encoding:") == 0) {
             ASSERT_TRUE(expectedEncoding);
             EXPECT_NE(line.find(expectedEncoding), std::string::npos);
             expectedEncoding = 0;
             sectionCheckedCount++;
         }
     }
     EXPECT_EQ(12, sectionCheckedCount);
 }
 
 } // namespace blink