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

ui/base/ime/chromeos/character_composer_unittest.cc

 // 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.
 
 #include "ui/base/ime/chromeos/character_composer.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/gtk+/gdk/gdkkeysyms.h"
 #include "ui/base/glib/glib_integers.h"
@@ skipping 268 matching lines @@
 
 TEST_F(CharacterComposerTest, HexadecimalComposition) {
   CharacterComposer character_composer;
   // HIRAGANA LETTER A (U+3042)
   ExpectKeyFiltered(&character_composer, GDK_KEY_U,
                     EF_SHIFT_DOWN | EF_CONTROL_DOWN);
   ExpectCharacterComposed(&character_composer, GDK_KEY_3, GDK_KEY_0, GDK_KEY_4,
                           GDK_KEY_2, GDK_KEY_space, 0,
                           base::string16(1, 0x3042));
   // MUSICAL KEYBOARD (U+1F3B9)
-  const char16 kMusicalKeyboard[] = {0xd83c, 0xdfb9};
+  const base::char16 kMusicalKeyboard[] = {0xd83c, 0xdfb9};
   ExpectKeyFiltered(&character_composer, GDK_KEY_U,
                     EF_SHIFT_DOWN | EF_CONTROL_DOWN);
   ExpectCharacterComposed(&character_composer, GDK_KEY_1, GDK_KEY_f, GDK_KEY_3,
                           GDK_KEY_b, GDK_KEY_9, GDK_KEY_Return, 0,
                           base::string16(kMusicalKeyboard,
                                    kMusicalKeyboard +
                                    arraysize(kMusicalKeyboard)));
 }
 
 TEST_F(CharacterComposerTest, HexadecimalCompositionPreedit) {
@@ skipping 230 matching lines @@
 
 TEST_F(CharacterComposerTest, BlacklistedKeyeventsTest) {
   CharacterComposer character_composer;
   EXPECT_TRUE(FilterKeyPress(&character_composer, GDK_KEY_dead_acute, 0, 0));
   EXPECT_FALSE(FilterKeyPress(&character_composer, GDK_KEY_s, 0, 0));
   ASSERT_EQ(1U, character_composer.composed_character().size());
   EXPECT_EQ(GDK_KEY_apostrophe, character_composer.composed_character().at(0));
 }
 
 }  // namespace ui