Prefix string16 with base:: in ui/.

ui/keyboard/keyboard_ui_handler.cc

 // Copyright (c) 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.
 
 #include "ui/keyboard/keyboard_ui_handler.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 30 matching lines @@
       "sendKeyEvent",
       base::Bind(&KeyboardUIHandler::HandleSendKeyEventMessage,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "hideKeyboard",
       base::Bind(&KeyboardUIHandler::HandleHideKeyboard,
                  base::Unretained(this)));
 }
 
 void KeyboardUIHandler::HandleInsertTextMessage(const base::ListValue* args) {
-  string16 text;
+  base::string16 text;
   if (!args->GetString(0, &text)) {
     LOG(ERROR) << "insertText failed: bad argument";
     return;
   }
 
   aura::Window* root_window =
       web_ui()->GetWebContents()->GetView()->GetNativeView()->GetRootWindow();
   if (!root_window) {
     LOG(ERROR) << "insertText failed: no root window";
     return;
@@ skipping 71 matching lines @@
 }
 
 void KeyboardUIHandler::HandleHideKeyboard(const base::ListValue* args) {
   // TODO(stevet): Call into the keyboard controller to hide the keyboard
   // directly.
   NOTIMPLEMENTED();
   return;
 }
 
 }  // namespace keyboard