Remove BackgroundHTMLInputStream

sky/engine/core/html/parser/BackgroundHTMLInputStream.h

Index: sky/engine/core/html/parser/BackgroundHTMLInputStream.h
diff --git a/sky/engine/core/html/parser/BackgroundHTMLInputStream.h b/sky/engine/core/html/parser/BackgroundHTMLInputStream.h
deleted file mode 100644
index c333f566a67d9ad8d2c8688c52a46cf02ada9208..0000000000000000000000000000000000000000
--- a/sky/engine/core/html/parser/BackgroundHTMLInputStream.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (C) 2013 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:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GOOGLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef BackgroundHTMLInputStream_h
-#define BackgroundHTMLInputStream_h
-
-#include "platform/text/SegmentedString.h"
-#include "wtf/Vector.h"
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-typedef size_t HTMLInputCheckpoint;
-
-class BackgroundHTMLInputStream {
-    WTF_MAKE_NONCOPYABLE(BackgroundHTMLInputStream);
-public:
-    BackgroundHTMLInputStream();
-
-    void append(const String&);
-    void close();
-
-    SegmentedString& current() { return m_current; }
-
-    // An HTMLInputCheckpoint is valid until the next call to rewindTo, at which
-    // point all outstanding checkpoints are invalidated.
-    HTMLInputCheckpoint createCheckpoint(size_t tokensExtractedSincePreviousCheckpoint);
-    void invalidateCheckpointsBefore(HTMLInputCheckpoint);
-
-    size_t totalCheckpointTokenCount() const { return m_totalCheckpointTokenCount; }
-
-private:
-    struct Checkpoint {
-        Checkpoint(size_t n, size_t t) : numberOfSegmentsAlreadyAppended(n), tokensExtractedSincePreviousCheckpoint(t) { }
-
-        size_t numberOfSegmentsAlreadyAppended;
-        size_t tokensExtractedSincePreviousCheckpoint;
-
-        void clear() { numberOfSegmentsAlreadyAppended = 0; tokensExtractedSincePreviousCheckpoint = 0;}
-    };
-
-    SegmentedString m_current;
-    Vector<String> m_segments;
-    Vector<Checkpoint> m_checkpoints;
-
-    // Note: These indicies may === vector.size(), in which case there are no valid checkpoints/segments at this time.
-    size_t m_firstValidCheckpointIndex;
-    size_t m_firstValidSegmentIndex;
-    size_t m_totalCheckpointTokenCount;
-
-    void updateTotalCheckpointTokenCount();
-};
-
-}
-
-#endif