Replace string16 with base::string16.

chrome/browser/android/bookmarks/partner_bookmarks_shim_unittest.cc

Index: chrome/browser/android/bookmarks/partner_bookmarks_shim_unittest.cc
diff --git a/chrome/browser/android/bookmarks/partner_bookmarks_shim_unittest.cc b/chrome/browser/android/bookmarks/partner_bookmarks_shim_unittest.cc
index 2542f236f87d60323d6ff83e844afd0b4d638d6f..e40c0d47e24af3cda63dc3e563484501b07cc8d3 100644
--- a/chrome/browser/android/bookmarks/partner_bookmarks_shim_unittest.cc
+++ b/chrome/browser/android/bookmarks/partner_bookmarks_shim_unittest.cc
@@ -44,14 +44,14 @@ class PartnerBookmarksShimTest : public testing::Test {
 
   const BookmarkNode* AddBookmark(const BookmarkNode* parent,
                                   const GURL& url,
-                                  const string16& title) {
+                                  const base::string16& title) {
     if (!parent)
       parent = model_->bookmark_bar_node();
     return model_->AddURL(parent, parent->child_count(), title, url);
   }
 
   const BookmarkNode* AddFolder(const BookmarkNode* parent,
-                                const string16& title) {
+                                const base::string16& title) {
     if (!parent)
       parent = model_->bookmark_bar_node();
     return model_->AddFolder(parent, parent->child_count(), title);