String::contains should use StringView.

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

Index: third_party/WebKit/Source/wtf/text/AtomicString.h
diff --git a/third_party/WebKit/Source/wtf/text/AtomicString.h b/third_party/WebKit/Source/wtf/text/AtomicString.h
index 55b612bc9a932e561e9c2cb0215064a1230c74d4..2dc75a75f35ef7499262a59cca3aedf2f9ae93e6 100644
--- a/third_party/WebKit/Source/wtf/text/AtomicString.h
+++ b/third_party/WebKit/Source/wtf/text/AtomicString.h
@@ -73,12 +73,6 @@ public:
 
     UChar operator[](unsigned i) const { return m_string[i]; }
 
-    bool contains(UChar c) const { return m_string.contains(c); }
-    bool contains(const LChar* s, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
-        { return m_string.contains(s, caseSensitivity); }
-    bool contains(const String& s, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
-        { return m_string.contains(s, caseSensitivity); }
-
     // Find characters.
     size_t find(UChar c, unsigned start = 0) const
         { return m_string.find(c, start); }
@@ -92,6 +86,10 @@ public:
     size_t find(const StringView& value, unsigned start = 0, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
         { return m_string.find(value, start, caseSensitivity); }
 
+    bool contains(char c) const { return find(c) != kNotFound; }
+    bool contains(const StringView& value, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
+        { return find(value, 0, caseSensitivity) != kNotFound; }
+
     bool startsWith(const StringView& prefix, TextCaseSensitivity caseSensitivity = TextCaseSensitive) const
         { return m_string.startsWith(prefix, caseSensitivity); }
     bool startsWith(UChar character) const