Update some uses of char16 to use the base:: namespace.

ui/base/ime/input_method_ibus_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 <X11/Xlib.h>
 #undef Bool
 #undef FocusIn
 #undef FocusOut
 #undef None
 
@@ skipping 241 matching lines @@
   virtual void ConfirmCompositionText() OVERRIDE {
     confirmed_text_ = composition_text_;
     composition_text_.Clear();
   }
   virtual void ClearCompositionText() OVERRIDE {
     composition_text_.Clear();
   }
   virtual void InsertText(const base::string16& text) OVERRIDE {
     inserted_text_ = text;
   }
-  virtual void InsertChar(char16 ch, int flags) OVERRIDE {
+  virtual void InsertChar(base::char16 ch, int flags) OVERRIDE {
     inserted_char_ = ch;
     inserted_char_flags_ = flags;
   }
   virtual gfx::NativeWindow GetAttachedWindow() const OVERRIDE {
     return static_cast<gfx::NativeWindow>(NULL);
   }
   virtual TextInputType GetTextInputType() const OVERRIDE {
     return input_type_;
   }
   virtual TextInputMode GetTextInputMode() const OVERRIDE {
@@ skipping 79 matching lines @@
   base::NativeEvent dispatched_native_event_;
   ui::EventType dispatched_fabricated_event_type_;
   ui::KeyboardCode dispatched_fabricated_event_key_code_;
   int dispatched_fabricated_event_flags_;
 
   // Variables for remembering the parameters that are passed to
   // ui::TextInputClient functions.
   CompositionText composition_text_;
   CompositionText confirmed_text_;
   base::string16 inserted_text_;
-  char16 inserted_char_;
+  base::char16 inserted_char_;
   unsigned int on_input_method_changed_call_count_;
   int inserted_char_flags_;
 
   // Variables that will be returned from the ui::TextInputClient functions.
   TextInputType input_type_;
   TextInputMode input_mode_;
   bool can_compose_inline_;
   gfx::Rect caret_bounds_;
   gfx::Range text_range_;
   gfx::Range selection_range_;
@@ skipping 638 matching lines @@
   ime_->ResetContext();
 
   // Do callback.
   mock_ime_engine_handler_->last_passed_callback().Run(true);
 
   EXPECT_EQ(0, ime_->process_key_event_post_ime_call_count());
 }
 // TODO(nona): Introduce ProcessKeyEventPostIME tests(crbug.com/156593).
 
 }  // namespace ui