views: Moves TextfieldController/TextRange into their own headers.

views/controls/textfield/native_textfield_win.cc

Index: views/controls/textfield/native_textfield_win.cc
diff --git a/views/controls/textfield/native_textfield_win.cc b/views/controls/textfield/native_textfield_win.cc
index 2047d40df83f1d603767c88514c048324030bb4f..31936ee658208634a430849a5830593c5536605c 100644
--- a/views/controls/textfield/native_textfield_win.cc
+++ b/views/controls/textfield/native_textfield_win.cc
@@ -14,17 +14,19 @@
 #include "skia/ext/skia_utils_win.h"
 #include "ui/base/clipboard/clipboard.h"
 #include "ui/base/clipboard/scoped_clipboard_writer.h"
-#include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/keycodes/keyboard_code_conversion_win.h"
+#include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/l10n/l10n_util_win.h"
 #include "ui/gfx/native_theme_win.h"
 #include "views/controls/label.h"
-#include "views/controls/menu/menu_win.h"
 #include "views/controls/menu/menu_2.h"
+#include "views/controls/menu/menu_win.h"
 #include "views/controls/native/native_view_host.h"
 #include "views/controls/textfield/native_textfield_views.h"
+#include "views/controls/textfield/text_range.h"
 #include "views/controls/textfield/textfield.h"
+#include "views/controls/textfield/textfield_controller.h"
 #include "views/focus/focus_manager.h"
 #include "views/focus/focus_util_win.h"
 #include "views/metrics.h"
@@ -933,7 +935,7 @@ void NativeTextfieldWin::HandleKeystroke() {
   const MSG* msg = GetCurrentMessage();
   ScopedFreeze freeze(this, GetTextObjectModel());
 
-  Textfield::Controller* controller = textfield_->GetController();
+  TextfieldController* controller = textfield_->GetController();
   bool handled = false;
   if (controller) {
     KeyEvent event(*msg);