Move EmptyString, kWhitespace and the BOM to base.

chrome/browser/autocomplete/autocomplete_input.cc

Index: chrome/browser/autocomplete/autocomplete_input.cc
diff --git a/chrome/browser/autocomplete/autocomplete_input.cc b/chrome/browser/autocomplete/autocomplete_input.cc
index 110fbeaf7377eacdb4b06fd43d72ff465b10d2d0..2de3f961327561e81d8e7cde5a799b56ebbe64da 100644
--- a/chrome/browser/autocomplete/autocomplete_input.cc
+++ b/chrome/browser/autocomplete/autocomplete_input.cc
@@ -121,12 +121,12 @@ std::string AutocompleteInput::TypeToString(Type type) {
 
 // static
 AutocompleteInput::Type AutocompleteInput::Parse(
-    const string16& text,
-    const string16& desired_tld,
+    const base::string16& text,
+    const base::string16& desired_tld,
     url_parse::Parsed* parts,
-    string16* scheme,
+    base::string16* scheme,
     GURL* canonicalized_url) {
-  const size_t first_non_white = text.find_first_not_of(kWhitespaceUTF16, 0);
+  size_t first_non_white = text.find_first_not_of(base::kWhitespaceUTF16, 0);
   if (first_non_white == string16::npos)
     return INVALID;  // All whitespace.