Use the correct case converter for |localName| and |tagName|

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 4f4a96bbe874cb23472c505131d724067c1598da..e6d7f39affc548f222985a383335780e34e69a55 100644
--- a/third_party/WebKit/Source/wtf/text/AtomicString.h
+++ b/third_party/WebKit/Source/wtf/text/AtomicString.h
@@ -168,9 +168,10 @@ class WTF_EXPORT AtomicString {
   AtomicString lower() const;
   AtomicString upper() const { return AtomicString(impl()->upper()); }
 
-  // Returns a lowercase version of the string. This function converts only
-  // upper-case ASCII characters.
+  // Returns a lowercase/uppercase version of the string. This function converts
+  // only upper/lower-case ASCII characters.
   AtomicString lowerASCII() const;
+  AtomicString upperASCII() const { return AtomicString(impl()->upperASCII()); }

[Sunny, 2017/03/01 08:59:25]

Hi tkent, I'm not sure call impl() here will return nullptr or not but I saw
line 169 use it directly, can I use it directly?

[tkent, 2017/03/01 12:21:27]

It should support null impl(). So implement it like AtomicString::lowerASCII().

 
   int toInt(bool* ok = 0) const { return m_string.toInt(ok); }
   double toDouble(bool* ok = 0) const { return m_string.toDouble(ok); }