Add explicit base namespace to string16 users.

chrome/common/importer/profile_import_process_messages.h

 // Copyright 2013 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.
 
 // Multiply-included message file, no traditonal include guard.
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/strings/string16.h"
@@ skipping 74 matching lines @@
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, p.url);
     WriteParam(m, p.title);
     WriteParam(m, p.visit_count);
     WriteParam(m, p.typed_count);
     WriteParam(m, p.last_visit);
     WriteParam(m, p.hidden);
   }
   static bool Read(const Message* m, PickleIterator* iter, param_type* p) {
     GURL url;
-    string16 title;
+    base::string16 title;
     int visit_count, typed_count;
     base::Time last_visit;
     bool hidden;
     if (!ReadParam(m, iter, &url) ||
         !ReadParam(m, iter, &title) ||
         !ReadParam(m, iter, &visit_count) ||
         !ReadParam(m, iter, &typed_count) ||
         !ReadParam(m, iter, &last_visit) ||
         !ReadParam(m, iter, &hidden))
       return false;
@@ skipping 187 matching lines @@
 
 IPC_MESSAGE_CONTROL2(ProfileImportProcessHostMsg_NotifyHistoryImportGroup,
                      std::vector<ImporterURLRow>,
                      int  /* the source of URLs as in history::VisitSource.*/
                           /* To simplify IPC call, pass as an integer */)
 
 IPC_MESSAGE_CONTROL1(ProfileImportProcessHostMsg_NotifyHomePageImportReady,
                      GURL  /* GURL of home page */)
 
 IPC_MESSAGE_CONTROL2(ProfileImportProcessHostMsg_NotifyBookmarksImportStart,
-                     string16  /* first folder name */,
-                     int       /* total number of bookmarks */)
+                     base::string16  /* first folder name */,
+                     int             /* total number of bookmarks */)
 
 IPC_MESSAGE_CONTROL1(ProfileImportProcessHostMsg_NotifyBookmarksImportGroup,
                      std::vector<ImportedBookmarkEntry>)
 
 IPC_MESSAGE_CONTROL1(ProfileImportProcessHostMsg_NotifyFaviconsImportStart,
                      int  /* total number of favicons */)
 
 IPC_MESSAGE_CONTROL1(ProfileImportProcessHostMsg_NotifyFaviconsImportGroup,
                      std::vector<ImportedFaviconUsage>)
 
 IPC_MESSAGE_CONTROL1(ProfileImportProcessHostMsg_NotifyPasswordFormReady,
                      autofill::PasswordForm)
 
 IPC_MESSAGE_CONTROL2(ProfileImportProcessHostMsg_NotifyKeywordsReady,
                      std::vector<importer::URLKeywordInfo>, // url_keywords
                      bool  /* unique on host and path */)
 
 IPC_MESSAGE_CONTROL1(ProfileImportProcessHostMsg_NotifyFirefoxSearchEngData,
                      std::vector<std::string>) // search_engine_data
 
 #if defined(OS_WIN)
 IPC_MESSAGE_CONTROL1(ProfileImportProcessHostMsg_NotifyIE7PasswordInfo,
                      importer::ImporterIE7PasswordInfo) // password_info
 #endif