[SavePage] Do not save images with errors

Source/web/tests/WebPageNewSerializerTest.cpp

Index: Source/web/tests/WebPageNewSerializerTest.cpp
diff --git a/Source/web/tests/WebPageNewSerializerTest.cpp b/Source/web/tests/WebPageNewSerializerTest.cpp
index fc8f3b43ed2f18dbac6a283cd50dd6135664ffc5..e42c8150a32d94f7df093734680cb2ffd2f56263 100644
--- a/Source/web/tests/WebPageNewSerializerTest.cpp
+++ b/Source/web/tests/WebPageNewSerializerTest.cpp
@@ -367,6 +367,30 @@ TEST_F(WebPageNewSerializeTest, SVGImageDontCrash)
     EXPECT_GT(mhtml.length(), 50U);
 }
 
+
+TEST_F(WebPageNewSerializeTest, DontIncludeErrorImage)
+{
+    WebURL pageUrl = toKURL("http://www.test.com");
+    WebURL imageUrl = toKURL("http://www.test.com/error_image.png");
+
+    registerMockedURLLoad(pageUrl, WebString::fromUTF8("page_with_img_error.html"), WebString::fromUTF8("pageserializer/"), htmlMimeType());
+    registerMockedURLLoad(imageUrl, WebString::fromUTF8("error_image.png"), WebString::fromUTF8("pageserializer/"), pngMimeType());
+
+    loadURLInTopFrame(pageUrl);
+
+    WebCString mhtmlData = WebPageSerializer::serializeToMHTML(webView());
+    ASSERT_FALSE(mhtmlData.isEmpty());
+
+    // Sniff the MHTML data to make sure image content is excluded.
+    LineReader lineReader(std::string(mhtmlData.data()));
+    std::string line;
+    while (lineReader.getNextLine(&line)) {
+        if (line.find("image/") != std::string::npos)
+            FAIL() << "Error Image was not excluded " << line;
+    }
+}
+
+
 TEST_F(WebPageNewSerializeTest, NamespaceElementsDontCrash)
 {
     WebURL pageUrl = toKURL("http://www.test.com");