Remove unused StringImpl::findNextLineStart, StringImpl::count and reverseFindLineTerminator.

third_party/WebKit/Source/wtf/text/StringImpl.h

Index: third_party/WebKit/Source/wtf/text/StringImpl.h
diff --git a/third_party/WebKit/Source/wtf/text/StringImpl.h b/third_party/WebKit/Source/wtf/text/StringImpl.h
index 22897f18998bd09c2e5588c9f36090b7af8920bc..c1cb3ee476a0cd58c856f9264baef345c26c8128 100644
--- a/third_party/WebKit/Source/wtf/text/StringImpl.h
+++ b/third_party/WebKit/Source/wtf/text/StringImpl.h
@@ -379,13 +379,9 @@ public:
     size_t findIgnoringCase(StringImpl*, unsigned index = 0);
     size_t findIgnoringASCIICase(StringImpl*, unsigned index = 0);
 
-    size_t findNextLineStart(unsigned index = UINT_MAX);
-
     size_t reverseFind(UChar, unsigned index = UINT_MAX);
     size_t reverseFind(StringImpl*, unsigned index = UINT_MAX);
 
-    size_t count(LChar) const;
-
     bool startsWith(UChar) const;
     bool startsWith(const char*, unsigned prefixLength) const;
     bool startsWith(const StringImpl*) const;
@@ -586,53 +582,6 @@ inline size_t find(const UChar* characters, unsigned length, CharacterMatchFunct
 }
 
 template<typename CharacterType>
-inline size_t findNextLineStart(const CharacterType* characters, unsigned length, unsigned index = 0)
-{
-    while (index < length) {
-        CharacterType c = characters[index++];
-        if ((c != '\n') && (c != '\r'))
-            continue;
-
-        // There can only be a start of a new line if there are more characters
-        // beyond the current character.
-        if (index < length) {
-            // The 3 common types of line terminators are 1. \r\n (Windows),
-            // 2. \r (old MacOS) and 3. \n (Unix'es).
-
-            if (c == '\n')
-                return index; // Case 3: just \n.
-
-            CharacterType c2 = characters[index];
-            if (c2 != '\n')
-                return index; // Case 2: just \r.
-
-            // Case 1: \r\n.
-            // But, there's only a start of a new line if there are more
-            // characters beyond the \r\n.
-            if (++index < length)
-                return index;
-        }
-    }
-    return kNotFound;
-}
-
-template<typename CharacterType>
-inline size_t reverseFindLineTerminator(const CharacterType* characters, unsigned length, unsigned index = UINT_MAX)
-{
-    if (!length)
-        return kNotFound;
-    if (index >= length)
-        index = length - 1;
-    CharacterType c = characters[index];
-    while ((c != '\n') && (c != '\r')) {
-        if (!index--)
-            return kNotFound;
-        c = characters[index];
-    }
-    return index;
-}
-
-template<typename CharacterType>
 inline size_t reverseFind(const CharacterType* characters, unsigned length, CharacterType matchCharacter, unsigned index = UINT_MAX)
 {
     if (!length)