Prefix string16 with base:: in ui/.

ui/views/widget/widget_unittest.cc

 // Copyright (c) 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.
 
 #include <algorithm>
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 1585 matching lines @@
     if (desktop_native_widget)
       init_params.native_widget = new DesktopNativeWidgetAura(widget);
 #else
     DCHECK(!desktop_native_widget)
         << "DesktopNativeWidget does not exist on non-Aura or on ChromeOS.";
 #endif
 
     internal::NativeWidgetPrivate* native_widget =
         widget->native_widget_private();
 
-    string16 empty;
-    string16 s1(UTF8ToUTF16("Title1"));
-    string16 s2(UTF8ToUTF16("Title2"));
-    string16 s3(UTF8ToUTF16("TitleLong"));
+    base::string16 empty;
+    base::string16 s1(UTF8ToUTF16("Title1"));
+    base::string16 s2(UTF8ToUTF16("Title2"));
+    base::string16 s3(UTF8ToUTF16("TitleLong"));
 
     // The widget starts with no title, setting empty should not change
     // anything.
     EXPECT_FALSE(native_widget->SetWindowTitle(empty));
     // Setting the title to something non-empty should cause a change.
     EXPECT_TRUE(native_widget->SetWindowTitle(s1));
     // Setting the title to something else with the same length should cause a
     // change.
     EXPECT_TRUE(native_widget->SetWindowTitle(s2));
     // Setting the title to something else with a different length should cause
@@ skipping 603 matching lines @@
   EXPECT_EQ(activate_result, MA_ACTIVATE);
 
   modal_dialog_widget->CloseNow();
   top_level_widget.CloseNow();
 }
 #endif
 #endif
 
 }  // namespace test
 }  // namespace views