Add fuzzer for HTMLPreloadScanner

third_party/WebKit/Source/core/html/parser/TextResourceDecoderFuzzer.cpp

Index: third_party/WebKit/Source/core/html/parser/TextResourceDecoderFuzzer.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/TextResourceDecoderFuzzer.cpp b/third_party/WebKit/Source/core/html/parser/TextResourceDecoderFuzzer.cpp
index e19011319fa1df5c8461662d7fcb9db30b769cce..b0e33faa3855650687074d7b3530ed6b7dace94e 100644
--- a/third_party/WebKit/Source/core/html/parser/TextResourceDecoderFuzzer.cpp
+++ b/third_party/WebKit/Source/core/html/parser/TextResourceDecoderFuzzer.cpp
@@ -2,39 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "core/html/parser/TextResourceDecoder.h"
+#include "core/html/parser/TextResourceDecoderForFuzzing.h"
 
 #include "platform/testing/FuzzedDataProvider.h"
 #include "platform/testing/TestingPlatformSupport.h"
-#include "wtf/text/WTFString.h"
 #include <algorithm>
 
 namespace blink {
 
-class TextResourceDecoderForFuzzing : public TextResourceDecoder {
-public:
-    // Note: mimeTypes can be quite long and still valid for XML. See the
-    // comment in DOMImplementation.cpp which says:
-    // Per RFCs 3023 and 2045, an XML MIME type is of the form:
-    // ^[0-9a-zA-Z_\\-+~!$\\^{}|.%'`#&*]+/[0-9a-zA-Z_\\-+~!$\\^{}|.%'`#&*]+\+xml$
-    //
-    // Similarly, charsets can be long too (see the various encodings in
-    // wtf/text). For instance: "unicode-1-1-utf-8". To ensure good coverage,
-    // set a generous max limit for these sizes (32 bytes should be good).
-    TextResourceDecoderForFuzzing(FuzzedDataProvider& fuzzedData)
-        : TextResourceDecoder(String::fromUTF8(fuzzedData.ConsumeBytesInRange(0, 32)), String::fromUTF8(fuzzedData.ConsumeBytesInRange(0, 32)), FuzzedOption(fuzzedData))
-    {
-    }
-
-private:
-    static TextResourceDecoder::EncodingDetectionOption FuzzedOption(FuzzedDataProvider& fuzzedData)
-    {
-        // Don't use AlwaysUseUTF8ForText which requires knowing the mimeType
-        // ahead of time.
-        return fuzzedData.ConsumeBool() ? UseAllAutoDetection : UseContentAndBOMBasedDetection;
-    }
-};
-
 int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
 {
     FuzzedDataProvider fuzzedData(data, size);