Add explicit base namespace to string16 users.

chrome/common/instant_types.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_COMMON_INSTANT_TYPES_H_
 #define CHROME_COMMON_INSTANT_TYPES_H_
 
 #include <string>
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/strings/string16.h"
 #include "chrome/common/autocomplete_match_type.h"
 #include "content/public/common/page_transition_types.h"
 #include "url/gurl.h"
 
 // ID used by Instant code to refer to objects (e.g. Autocomplete results, Most
 // Visited items) that the Instant page needs access to.
 typedef int InstantRestrictedID;
 
 // A wrapper to hold Instant suggested text and its metadata. Used to tell the
 // server what suggestion to prefetch.
 struct InstantSuggestion {
   InstantSuggestion();
-  InstantSuggestion(const string16& in_text,
+  InstantSuggestion(const base::string16& in_text,
                     const std::string& in_metadata);
   ~InstantSuggestion();
 
   // Full suggested text.
-  string16 text;
+  base::string16 text;
 
   // JSON metadata from the server response which produced this suggestion.
   std::string metadata;
 };
 
 // Omnibox dropdown matches provided by the native autocomplete providers.
 struct InstantAutocompleteResult {
   InstantAutocompleteResult();
   ~InstantAutocompleteResult();
 
   // The provider name, as returned by AutocompleteProvider::GetName().
-  string16 provider;
+  base::string16 provider;
 
   // The type of the result.
   AutocompleteMatchType::Type type;
 
   // The description (title), same as AutocompleteMatch::description.
-  string16 description;
+  base::string16 description;
 
   // The URL of the match, same as AutocompleteMatch::destination_url.
-  string16 destination_url;
+  base::string16 destination_url;
 
   // The search query for this match. Only set for matches coming from
   // SearchProvider. Populated using AutocompleteMatch::contents.
-  string16 search_query;
+  base::string16 search_query;
 
   // The transition type to use when the user opens this match. Same as
   // AutocompleteMatch::transition.
   content::PageTransition transition;
 
   // The relevance score of this match, same as AutocompleteMatch::relevance.
   int relevance;
 
   // The index of the match in AutocompleteResult. Used to get the instant
   // suggestion metadata details. Set to kNoMatchIndex if the
@@ skipping 92 matching lines @@
   // True if theme has an alternate logo.
   bool logo_alternate;
 };
 
 struct InstantMostVisitedItem {
   // The URL of the Most Visited item.
   GURL url;
 
   // The title of the Most Visited page.  May be empty, in which case the |url|
   // is used as the title.
-  string16 title;
+  base::string16 title;
 };
 
 // An InstantMostVisitedItem along with its assigned restricted ID.
 typedef std::pair<InstantRestrictedID, InstantMostVisitedItem>
     InstantMostVisitedItemIDPair;
 
 #endif  // CHROME_COMMON_INSTANT_TYPES_H_