Move IsStringASCII/UTF8 to base namespace.

chrome/common/net/url_fixer_upper.cc

Index: chrome/common/net/url_fixer_upper.cc
diff --git a/chrome/common/net/url_fixer_upper.cc b/chrome/common/net/url_fixer_upper.cc
index 5c720232a7f3988b5c99daff94137dfc409e55ee..33a84b8d02dfafa0eb6c7f929b293b146a32436d 100644
--- a/chrome/common/net/url_fixer_upper.cc
+++ b/chrome/common/net/url_fixer_upper.cc
@@ -51,7 +51,7 @@ url_parse::Component UTF8ComponentToUTF16Component(
 void UTF8PartsToUTF16Parts(const std::string& text_utf8,
                            const url_parse::Parsed& parts_utf8,
                            url_parse::Parsed* parts) {
-  if (IsStringASCII(text_utf8)) {
+  if (base::IsStringASCII(text_utf8)) {
     *parts = parts_utf8;
     return;
   }
@@ -80,7 +80,7 @@ base::TrimPositions TrimWhitespaceUTF8(const std::string& input,
   // This implementation is not so fast since it converts the text encoding
   // twice. Please feel free to file a bug if this function hurts the
   // performance of Chrome.
-  DCHECK(IsStringUTF8(input));
+  DCHECK(base::IsStringUTF8(input));
   base::string16 input16 = base::UTF8ToUTF16(input);
   base::string16 output16;
   base::TrimPositions result =