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

ui/views/controls/menu/menu_controller.cc

Index: ui/views/controls/menu/menu_controller.cc
diff --git a/ui/views/controls/menu/menu_controller.cc b/ui/views/controls/menu/menu_controller.cc
index 12922a71861c99b61bd17c0031558ea83f290e74..38d35e4cbace4ac1352dc2123372b4c8ca174398 100644
--- a/ui/views/controls/menu/menu_controller.cc
+++ b/ui/views/controls/menu/menu_controller.cc
@@ -87,13 +87,13 @@ const int kBubbleTipSizeTopBottom = 11;
 const float kMaximumLengthMovedToActivate = 4.0f;
 
 // Returns true if the mnemonic of |menu| matches key.
-bool MatchesMnemonic(MenuItemView* menu, char16 key) {
+bool MatchesMnemonic(MenuItemView* menu, base::char16 key) {
   return menu->GetMnemonic() == key;
 }
 
 // Returns true if |menu| doesn't have a mnemonic and first character of the its
 // title is |key|.
-bool TitleMatchesMnemonic(MenuItemView* menu, char16 key) {
+bool TitleMatchesMnemonic(MenuItemView* menu, base::char16 key) {
   if (menu->GetMnemonic())
     return false;
 
@@ -1038,7 +1038,7 @@ bool MenuController::Dispatch(const MSG& msg) {
       return result;
     }
     case WM_CHAR:
-      return !SelectByChar(static_cast<char16>(msg.wParam));
+      return !SelectByChar(static_cast<base::char16>(msg.wParam));
     case WM_KEYUP:
       return true;
 
@@ -2046,8 +2046,8 @@ void MenuController::CloseSubmenu() {
 
 MenuController::SelectByCharDetails MenuController::FindChildForMnemonic(
     MenuItemView* parent,
-    char16 key,
-    bool (*match_function)(MenuItemView* menu, char16 mnemonic)) {
+    base::char16 key,
+    bool (*match_function)(MenuItemView* menu, base::char16 mnemonic)) {
   SubmenuView* submenu = parent->GetSubmenu();
   DCHECK(submenu);
   SelectByCharDetails details;
@@ -2098,9 +2098,9 @@ bool MenuController::AcceptOrSelect(MenuItemView* parent,
   return false;
 }
 
-bool MenuController::SelectByChar(char16 character) {
-  char16 char_array[] = { character, 0 };
-  char16 key = base::i18n::ToLower(char_array)[0];
+bool MenuController::SelectByChar(base::char16 character) {
+  base::char16 char_array[] = { character, 0 };
+  base::char16 key = base::i18n::ToLower(char_array)[0];
   MenuItemView* item = pending_state_.item;
   if (!item->HasSubmenu() || !item->GetSubmenu()->IsShowing())
     item = item->GetParentMenuItem();